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2/9 During Class
Quiz by Jing Gao
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Rules for this Class 1. Respect yourself, your classmates and your teacher. Refrain from using inappropriate language. Keep your hands to yourself. Raise your hand to speak. Listen to others and respect what they have to say. 2. Uniforms Must be worn at all times, you will not be allowed to enter class without one. Students will be sent to Jose or Maria to receive a uniform. 3. Seating Sit in the front of the class unless there are no available seats and sit in assigned seats. 4. Cleanliness Always clean up after yourself and return all borrowed items back to their rightful place. 5. Technology Protocols: Do not use the laptop other than for classwork. Use of Headphones and Phones are forbidden. 6. Materials for class Always come to class prepared with a notebook, folder, pens or pencil. 7. Plagiarism Copying other people’s work is forbidden. You must cite Direct Quotes or paraphrase words that aren’t your own. Colleges will suspend you for cheating. 8. Bathroom No Bathroom or Water the first ten minutes and last ten minutes of class. Students must sign the bathroom log before leaving and after they come back. 9. Always be engaged during class time. Participation Classwork Working with others 10. Follow Directions Always listen for directions or read the direction on the smartboard as well as your worksheet for directions. Classroom Expectations and Policies Assessment 1. What should students bring to class every day? a. Only a positive attitude b. Charged Chromebook, writing utensil, and positive attitude c. Just their books d. Snacks and drinks 2. What is the consequence for bullying in the classroom? a. A warning b. A violation card c. Extra homework d. A meeting with the principal 3. If a student breaks a personal item, what must they do? a. Ignore it b. Apologize c. Buy a new one for the teacher d. Ask for forgiveness 4. How should students handle using the futon during class? a. Sit on it every day b. Use it without asking c. Ask first and only use it during work time d. Sit on it during lectures 5. Where will all assignments be posted? a. On the classroom wall b. On Canvas c. Only verbally d. In a textbook 6. What happens if an assignment is submitted late? a. It will be graded normally b. It will not be accepted c. It will drop a letter grade each day it is late d. It will be given extra credit 7. After how many days of lateness will a student receive only half credit for an assignment? a. 1 day b. 2 days c. 3 days d. 4 days 8. What is the policy for retaking tests? a. No retakes allowed b. Students must schedule the retake themselves c. Retakes are given automatically d. Only the teacher can decide on retakes 9. What constitutes cheating in this classroom? a. Asking for help b. Claiming credit for someone else's work c. Working with a partner d. Participating in study groups 10. What is the penalty for cheating? a. A warning b. A failing grade on the assignment and notification of parents c. Extra assignments d. A detention 11. How will grades be determined? a. By participation only b. By points, with tests and quizzes weighted more than classwork c. By effort d. By attendance 12. Where can students use their cell phones? a. In class anytime b. In the commons and hallways during passing time and lunch c. In the restroom d. In the cafeteria only 13. What happens if a student uses their phone during class? a. They will receive a warning b. The phone will be confiscated immediately c. They can keep it if they ask d. They will lose points on their grade 14. What should a student do if they know they will be absent? a. Ignore it and hope for the best b. Come to the teacher at least three days before c. Ask a friend for notes d. Just show up later 15. If a student is sick and cannot do work, what should they focus on? a. Completing all missed assignments b. Getting better c. Emailing the teacher every hour d. Asking for extra credit 16. What is the policy on bringing food or drinks to class? a. It's not allowed at all b. It’s allowed as long as it’s not a distraction c. Only water is allowed d. Students must share their food 17. How should students contact the teacher with questions? a. Only during class time b. Through social media c. By email or in person d. By sending a friend 18. What happens if a student emails after 9 PM? a. The teacher will respond immediately b. The teacher will respond the next day at 7:45 AM c. The email will be ignored d. The teacher will call the student 19. How do violations accumulate for cell phone use? a. They reset every trimester b. They accumulate throughout the school year c. They reset every week d. They do not count 20. What should students do if they have concerns while the teacher is on maternity leave? a. Contact the principal b. Contact the substitute teacher for assistance c. Wait until the teacher returns d. Handle it on their own Answer Key (Always review AI generated answers for accuracy - Math is more likely to be inaccurate) b. Charged Chromebook, writing utensil, and positive attitude b. A violation card c. Buy a new one for the teacher c. Ask first and only use it during work time b. On Canvas c. It will drop a letter grade each day it is late c. 3 days b. Students must schedule the retake themselves b. Claiming credit for someone else's work b. A failing grade on the assignment and notification of parents b. By points, with tests and quizzes weighted more than classwork b. In the commons and hallways during passing time and lunch b. The phone will be confiscated immediately b. Come to the teacher at least three days before b. Getting better b. It’s allowed as long as it’s not a distraction c. By email or in person b. The teacher will respond the next day at 7:45 AM b. They accumulate throughout the school year b. Contact the substitute teacher for assistance The advantage of direct method is that the teacher can control the class and fit in a lot of activity into a short class period. This leaves plenty of opportunities for the students to hone their skills, especially new ones. On the other hand, because the class is centered around the teacher, some students may not receive proper feedback, and creativity is limited. Also, the lesser talented athletes often tend to get lost in the shuffle while the great athletes shine. However, there are now a multitude of various teaching strategies that can be employed in addition to that method. Ex: Announcements, Module/Unit introductions, Descriptions/modeling of assignments and learning activities, Written or video lectures, Demonstration videos, Presentations, Discussions moderated by instructors, Interactive tutorials. Indirect Method The Indirect Teaching Style allows students to be involved in their own learning through experience and other peer’s knowledge. Students can use critical thinking to expand their learning capabilities by seeing what others may be doing correct and adjusting this to their own knowledge. The Indirect approach is the opposite of what the direct style suggests, but they are both strictly related, meaning you can’t have one without the other. Direct teaching: The instructor stands in front of the class or group and lectures or advises. Indirect teaching: The instructor assumes a more passive role and guides the student interactions. Movement exploration: Incorporates the use of equipment that involves movement. Movement Exploration The movement exploration class is founded on developing a strong, positive association to physical activity. Classes are aimed at developing movement skills and foundational strength through fun and engaging activities. The activities are age appropriate and include games, challenges, and exploration that positively challenge children’s competency while improving their physical capabilities. Skills such as the ability to climb, hold animal shapes, gymnastic style activities, and the introduction to athletic motor skill competencies are the foundations to youth training. This class provides the introduction to strength training to give children the opportunity to learn the skills required to safely and confidently engage in resistance training. Cooperative Skills Cooperative activities teach students to work together for their group's common good. By participating in these activities, students can learn the skills of listening, discussing, thinking as a group, group decision making, and sacrificing individual wants for the common good. There are two primary objectives guiding the teaching of cooperative activities. First, cooperative activities allow students to apply a variety of fundamental motor skills in a unique setting. Students are typically asked to perform motor skills in a specific way, such as “skip in general space” or “balance on one foot and one elbow.” Cooperative activities ask students to perform different activities such as skip with their hands on the shoulders of someone in front of them, walk with big steps while placing their feet on small spots, or walk across an area blindfolded while someone directs their moves. Due to the uniqueness of such experiences, students often find cooperative activities exciting and motivating. Second, cooperative activities are a wonderful medium for teaching social and emotional learning (SEL). SEL offers students an opportunity to understand and manage their emotions. In addition, such activities offer an opportunity to show empathy for others and develop positive relationships. Cooperative activities demand that all students play a role in completing the task or solving the movement problem. Every student, regardless of ability level, is important and contributes to group goals. 9 traits a PE teacher often needs Here are nine essential traits of an effective PE teacher: 1. Athletic ability Athletic ability is an essential trait for a PE teacher because they're often showing kids how to perform exercises. To demonstrate proper form and encourage the kids to continue their fitness education, it's important they can perform the exercises themselves. Having experience with fitness training can enhance a PE teacher's lesson planning because they're familiar with how each exercise affects a person's body. Athletic ability can also refer to an aptitude for sports and games. PE teachers can instruct students on how to play these games or lead after-school activities involving them, like soccer or basketball. An aptitude for sports and games can help a PE teacher encourage students to participate in the activities during class. If the PE teacher enjoys physical activity, they may make the lessons more enjoyable for the student. 2. Teaching ability A PE teacher is a member of a school faculty, so it's essential they have the teaching ability that allows them to communicate lessons to students. There are various skills involved in teaching, including the technical capabilities associated with each professional's particular field. Learning these skills can help PE teacher plan their lessons effectively and connect with their students, meaning they can encourage students to practice fitness skills in optimal ways for their health. Here are some important teaching skills for PE teachers: Having an engaging classroom presence Real-world learning Project building Lesson planning Technology 3. Interpersonal skills PE coaches are part of faculty teams, so working alongside other teachers is an essential part of their job. They often collaborate with a student's general education teacher to address any behavioral issues that arise. They can also team up with other classes to plan activities for students, like field days and special field trips. Communicating with peers can ensure these interactions remain productive and create opportunities for more fulfilling lessons. Teachers can also model emotional skills for their students by displaying positive social interactions. Interpersonal skills can also help PE teachers interact with students and their families. If a student can make a student feel comfortable expressing their needs and preferences, they can often perform physical exercises or play games to the best of their individual capacities. Understanding how to soothe nerves and support students' emotional needs are important examples of interpersonal skills. When interacting with family members, you may use some of these same techniques to communicate effectively and best uplift students. 4. Written and verbal communication Both verbal and written communication is important for PE teachers because they often communicate with students, families and various personnel on a day-to-day basis. For example, a PE teacher uses their communication skills in a lesson plan to describe any student assignments or expectations accurately. They may also write instructions in a document, then explain them in a classroom lecture. They also use communication skills to share their lesson plans with other PE teachers during conferences or classroom development exercises. Many teachers continue to learn their trade even after working as a teacher for many years. They may share tips with each other or special lessons they've developed if they feel another teacher may benefit from it. Creating a community can help PE teachers continue to expand their teaching methodology and receive feedback on their lessons. 5. Patience and adaptability Working with children can require patience and adaptability because they're encountering many new concepts at the same time and learning how to regulate their emotions. As a result, it's important to treat them with patience and care while they're in your class so they can feel comfortable and feel motivated to complete assignments. As children become teenagers, they may require patience and adaptability to account for their changing bodies and attention spans. Like any job where you perform tasks in real-time, certain circumstances may occur that require you to adapt lesson plans. For example, if the weather turns from sunshine to rain on a day you planned for students to run a mile outside, you may need to adapt the lesson plan so they can practice endurance sports inside a gymnasium instead. 6. Organization PE teachers can use organization skills to improve their lesson planning sessions. For example, they can keep their plans in one place, and determine which parts of a semester or quarter to introduce new concepts. Throughout the year, these objectives may change because of unforeseen setbacks, but organizational skills can help PE teachers control the trajectory of their class curriculum. PE teachers can also use organizational skills to maintain their classroom space. Physical education frequently requires balls, equipment and tools to play games that may be on a lesson plan. They also organize equipment and decide where to store it within their classroom or storage space. 7. Creativity Creativity can help a PE teacher develop fun ways to introduce new material to their students or reinforce previous lessons. They can teach new games or devise interesting ideas to change the rules of a game to help keep students engaged. To find inspiration for their lesson plans, they can turn to personal hobbies or media aspects they enjoy, like movie scenes, songs or dances. A varied lesson plan can foster more engagement among students who prefer action- based learning activities, rather than lectures. 8. Focus Focus is an essential trait of a PE teacher because students often require their full attention during class, especially if they're learning a complicated physical task. You can focus your lesson plans around specific elements of physical education you believe are essential for students of a certain age group or skill level. If students require mentorship, you can also focus on each student's needs to supply them with a steady support system. Focusing on your students can help guide your career purpose. It can give you a core value system that informs your lesson plans and mentorship activities. This passion for your student's well-being can also help you become an advocate for each student in your class. You can also help organize funding for different field trips or establish after-school activities to support their interests. 9. Enthusiasm for teaching sports and fitness Enthusiasm is essential for a PE teacher. Many physical education activities require high energy and may suit someone who enjoys teaching them to others. Being an effective PE teacher also requires an enthusiasm for working with kids and making a positive impact on their lives.Introduction to Free Fall A free-falling object is an object that is falling under the sole influence of gravity. Any object that is being acted upon only by the force of gravity is said to be in a state of free fall. There are two important motion characteristics that are true of free-falling objects: • Free-falling objects do not encounter air resistance. • All free-falling objects (on Earth) accelerate downwards at a rate of 9.8 m/s/s (often approximated as 10 m/s/s for back-of-the-envelope calculations) Because free-falling objects are accelerating downwards at a rate of 9.8 m/s/s, a ticker tape trace or dot diagram of its motion would depict an acceleration. The dot diagram at the right depicts the acceleration of a free-falling object. The position of the object at regular time intervals - say, every 0.1 second - is shown. The fact that the distance that the object travels every interval of time is increasing is a sure sign that the ball is speeding up as it falls downward. Recall from an earlier lesson, that if an object travels downward and speeds up, then its acceleration is downward. Free-fall acceleration is often witnessed in a physics classroom by means of an ever-popular strobe light demonstration. The room is darkened and a jug full of water is connected by a tube to a medicine dropper. The dropper drips water and the strobe illuminate the falling droplets at a regular rate - say once every 0.2 seconds. Instead of seeing a stream of water free-falling from the medicine dropper, several consecutive drops with increasing separation distance are seen. The pattern of drops resembles the dot diagram shown in the graphic at the right. The Acceleration of Gravity It was learned in the previous part of this lesson that a free-falling object is an object that is falling under the sole influence of gravity. A free-falling object has an acceleration of 9.8 m/s/s, downward (on Earth). This numerical value for the acceleration of a free-falling object is such an important value that it is given a special name. It is known as the acceleration of gravity - the acceleration for any object moving under the sole influence of gravity. A matter of fact, this quantity known as the acceleration of gravity is such an important quantity that physicists have a special symbol to denote it - the symbol g. The numerical value for the acceleration of gravity is most accurately known as 9.8 m/s2. There are slight variations in this numerical value (to the second decimal place) that are dependent primarily upon on altitude. We will occasionally use the approximated value of 10 m/s2 in order to reduce the complexity of the many mathematical tasks that we will perform with this number. By so doing, we will be able to better focus on the conceptual nature of physics without too much of a sacrifice in numerical accuracy. g = 9.8 m/s2, downward Look It Up! Even on the surface of the Earth, there are local variations in the value of the acceleration of gravity (g). These variations are due to latitude, altitude and the local geological structure of the region. Recall from an earlier lesson that acceleration is the rate at which an object changes its velocity. It is the ratio of velocity change to time between any two points in an object's path. To accelerate at 9.8 m/s2 means to change the velocity by 9.8 m/s each second. If the velocity and time for a free-falling object being dropped from a position of rest were tabulated, then one would note the following pattern. Time (s) Velocity (m/s) 0 0 1 - 9.8 2 - 19.6 3 - 29.4 4 - 39.2 5 - 49.0 . Observe that the velocity-time data above reveal that the object's velocity is changing by 9.8 m/s each consecutive second. That is, the free-falling object has an acceleration of approximately 9.8 m/s2. Another way to represent this acceleration of 9.8 m/s2 is to add numbers to our dot diagram that we saw earlier in this lesson. The velocity of the ball is seen to increase as depicted in the diagram at the right. (NOTE: The diagram is not drawn to scale - in two seconds, the object would drop considerably further than the distance from shoulder to toes.) Representing Free Fall by Graphs • Early in Lesson 1 it was mentioned that there are a variety of means of describing the motion of objects. One such means of describing the motion of objects is through the use of graphs - position versus time and velocity vs. time graphs. In this part of Lesson 5, the motion of a free-falling motion will be represented using these two basic types of graphs. Representing Free Fall by Position-Time Graphs A position versus time graph for a free-falling object is shown below. Observe that the line on the graph curves. As learned earlier, a curved line on a position versus time graph signifies an accelerated motion. Since a free-falling object is undergoing an acceleration (g = 9.8 m/s/s), it would be expected that its position-time graph would be curved. A further look at the position-time graph reveals that the object starts with a small velocity (slow) and finishes with a large velocity (fast). Since the slope of any position vs. time graph is the velocity of the object (as learned in Lesson 3), the small initial slope indicates a small initial velocity and the large final slope indicates a large final velocity. Finally, the negative slope of the line indicates a negative (i.e., downward) velocity. Representing Free Fall by Velocity-Time Graphs A velocity versus time graph for a free-falling object is shown below. Observe that the line on the graph is a straight, diagonal line. As learned earlier, a diagonal line on a velocity versus time graph signifies an accelerated motion. Since a free-falling object is undergoing an acceleration (g = 9,8 m/s/s, downward), it would be expected that its velocity-time graph would be diagonal. A further look at the velocity-time graph reveals that the object starts with a zero velocity (as read from the graph) and finishes with a large, negative velocity; that is, the object is moving in the negative direction and speeding up. An object that is moving in the negative direction and speeding up is said to have a negative acceleration (if necessary, review the vector nature of acceleration). Since the slope of any velocity versus time graph is the acceleration of the object (as learned in Lesson 4), the constant, negative slope indicates a constant, negative acceleration. This analysis of the slope on the graph is consistent with the motion of a free-falling object - an object moving with a constant acceleration of 9.8 m/s/s in the downward direction. The Kinematic Equations The goal of this first unit has been to investigate the variety of means by which the motion of objects can be described. The variety of representations that we have investigated includes verbal representations, pictorial representations, numerical representations, and graphical representations (position-time graphs and velocity-time graphs). In Lesson 6, we will investigate the use of equations to describe and represent the motion of objects. These equations are known as kinematic equations. There are a variety of quantities associated with the motion of objects - displacement (and distance), velocity (and speed), acceleration, and time. Knowledge of each of these quantities provides descriptive information about an object's motion. For example, if a car is known to move with a constant velocity of 22.0 m/s, North for 12.0 seconds for a northward displacement of 264 meters, then the motion of the car is fully described. And if a second car is known to accelerate from a rest position with an eastward acceleration of 3.0 m/s2 for a time of 8.0 seconds, providing a final velocity of 24 m/s, East and an eastward displacement of 96 meters, then the motion of this car is fully described. These two statements provide a complete description of the motion of an object. However, such completeness is not always known. It is often the case that only a few parameters of an object's motion are known, while the rest are unknown. For example as you approach the stoplight, you might know that your car has a velocity of 22 m/s, East and is capable of a skidding acceleration of 8.0 m/s2, West. However you do not know the displacement that your car would experience if you were to slam on your brakes and skid to a stop; and you do not know the time required to skid to a stop. In such an instance as this, the unknown parameters can be determined using physics principles and mathematical equations (the kinematic equations). The BIG 4 The kinematic equations are a set of four equations that can be utilized to predict unknown information about an object's motion if other information is known. The equations can be utilized for any motion that can be described as being either a constant velocity motion (an acceleration of 0 m/s/s) or a constant acceleration motion. They can never be used over any time period during which the acceleration is changing. Each of the kinematic equations include four variables. If the values of three of the four variables are known, then the value of the fourth variable can be calculated. In this manner, the kinematic equations provide a useful means of predicting information about an object's motion if other information is known. For example, if the acceleration value and the initial and final velocity values of a skidding car is known, then the displacement of the car and the time can be predicted using the kinematic equations. Lesson 6 of this unit will focus upon the use of the kinematic equations to predict the numerical values of unknown quantities for an object's motion. The four kinematic equations that describe an object's motion are: There are a variety of symbols used in the above equations. Each symbol has its own specific meaning. The symbol d stands for the displacement of the object. The symbol t stands for the time for which the object moved. The symbol a stands for the acceleration of the object. And the symbol v stands for the velocity of the object; a subscript of i after the v (as in vi) indicates that the velocity value is the initial velocity value and a subscript of f (as in vf) indicates that the velocity value is the final velocity value. Each of these four equations appropriately describes the mathematical relationship between the parameters of an object's motion. As such, they can be used to predict unknown information about an object's motion if other information is known. In the next part of Lesson 6 we will investigate the process of doing this. Kinematic Equations and Problem-Solving The four kinematic equations that describe the mathematical relationship between the parameters that describe an object's motion were introduced in the previous part of Lesson 6. The four kinematic equations are: In the above equations, the symbol d stands for the displacement of the object. The symbol t stands for the time for which the object moved. The symbol a stand for the acceleration of the object. And the symbol v stands for the instantaneous velocity of the object; a subscript of i after the v (as in vi) indicates that the velocity value is the initial velocity value and a subscript of f (as in vf) indicates that the velocity value is the final velocity value. Problem-Solving Strategy In this part of Lesson 6 we will investigate the process of using the equations to determine unknown information about an object's motion. The process involves the use of a problem-solving strategy that will be used throughout the course. The strategy involves the following steps: 1. Construct an informative diagram of the physical situation. 2. Identify and list the given information in variable form. 3. Identify and list the unknown information in variable form. 4. Identify and list the equation that will be used to determine unknown information from known information. 5. Substitute known values into the equation and use appropriate algebraic steps to solve for the unknown information. 6. Check your answer to ensure that it is reasonable and mathematically correct. The use of this problem-solving strategy in the solution of the following problem is modeled in Examples A and B below. Example Problem A . Ima Hurryin is approaching a stoplight moving with a velocity of +30.0 m/s. The light turns yellow, and Ima applies the brakes and skids to a stop. If Ima's acceleration is -8.00 m/s2, then determine the displacement of the car during the skidding process. (Note that the direction of the velocity and the acceleration vectors are denoted by a + and a - sign.) The solution to this problem begins by the construction of an informative diagram of the physical situation. This is shown below. The second step involves the identification and listing of known information in variable form. Note that the vf value can be inferred to be 0 m/s since Ima's car comes to a stop. The initial velocity (vi) of the car is +30.0 m/s since this is the velocity at the beginning of the motion (the skidding motion). And the acceleration (a) of the car is given as - 8.00 m/s2. (Always pay careful attention to the + and - signs for the given quantities.) The next step of the strategy involves the listing of the unknown (or desired) information in variable form. In this case, the problem requests information about the displacement of the car. So d is the unknown quantity. The results of the first three steps are shown in the table below. Diagram: Given: Find: vi = +30.0 m/s vf = 0 m/s a = - 8.00 m/s2 d = ?? The next step of the strategy involves identifying a kinematic equation that would allow you to determine the unknown quantity. There are four kinematic equations to choose from. In general, you will always choose the equation that contains the three known and the one unknown variable. In this specific case, the three known variables and the one unknown variable are vf, vi, a, and d. Thus, you will look for an equation that has these four variables listed in it. An inspection of the four equations above reveals that the equation on the top right contains all four variables. vf2 = vi2 + 2 • a • d Once the equation is identified and written down, the next step of the strategy involves substituting known values into the equation and using proper algebraic steps to solve for the unknown information. This step is shown below. (0 m/s)2 = (30.0 m/s)2 + 2 • (-8.00 m/s2) • d 0 m2/s2 = 900 m2/s2 + (-16.0 m/s2) • d (16.0 m/s2) • d = 900 m2/s2 - 0 m2/s2 (16.0 m/s2)*d = 900 m2/s2 d = (900 m2/s2)/ (16.0 m/s2) d = (900 m2/s2)/ (16.0 m/s2) d = 56.3 m The solution above reveals that the car will skid a distance of 56.3 meters. (Note that this value is rounded to the third digit.) The last step of the problem-solving strategy involves checking the answer to assure that it is both reasonable and accurate. The value seems reasonable enough. It takes a car a considerable distance to skid from 30.0 m/s (approximately 65 mi/hr) to a stop. The calculated distance is approximately one-half a football field, making this a very reasonable skidding distance. Checking for accuracy involves substituting the calculated value back into the equation for displacement and insuring that the left side of the equation is equal to the right side of the equation. Indeed it is! Example Problem B Ben Rushin is waiting at a stoplight. When it finally turns green, Ben accelerated from rest at a rate of a 6.00 m/s2 for a time of 4.10 seconds. Determine the displacement of Ben's car during this time period. Once more, the solution to this problem begins by the construction of an informative diagram of the physical situation. This is shown below. The second step of the strategy involves the identification and listing of known information in variable form. Note that the vi value can be inferred to be 0 m/s since Ben's car is initially at rest. The acceleration (a) of the car is 6.00 m/s2. And the time (t) is given as 4.10 s. The next step of the strategy involves the listing of the unknown (or desired) information in variable form. In this case, the problem requests information about the displacement of the car. So d is the unknown information. The results of the first three steps are shown in the table below. Diagram: Given: Find: vi = 0 m/s t = 4.10 s a = 6.00 m/s2 d = ?? The next step of the strategy involves identifying a kinematic equation that would allow you to determine the unknown quantity. There are four kinematic equations to choose from. Again, you will always search for an equation that contains the three known variables and the one unknown variable. In this specific case, the three known variables and the one unknown variable are t, vi, a, and d. An inspection of the four equations above reveals that the equation on the top left contains all four variables. d = vi • t + ½ • a • t2 Once the equation is identified and written down, the next step of the strategy involves substituting known values into the equation and using proper algebraic steps to solve for the unknown information. This step is shown below. d = (0 m/s) • (4.1 s) + ½ • (6.00 m/s2) • (4.10 s)2 d = (0 m) + ½ • (6.00 m/s2) • (16.81 s2) d = 0 m + 50.43 m d = 50.4 m The solution above reveals that the car will travel a distance of 50.4 meters. (Note that this value is rounded to the third digit.) The last step of the problem-solving strategy involves checking the answer to assure that it is both reasonable and accurate. The value seems reasonable enough. A car with an acceleration of 6.00 m/s/s will reach a speed of approximately 24 m/s (approximately 50 mi/hr) in 4.10 s. The distance over which such a car would be displaced during this time period would be approximately one-half a football field, making this a very reasonable distance. Checking for accuracy involves substituting the calculated value back into the equation for displacement and insuring that the left side of the equation is equal to the right side of the equation. Indeed, it is! The two example problems above illustrate how the kinematic equations can be combined with a simple problem-solving strategy to predict unknown motion parameters for a moving object. Provided that three motion parameters are known, any of the remaining values can be determined. In the next part of Lesson 6, we will see how this strategy can be applied to free fall situations. Or if interested, you can try some practice problems and check your answer against the given solutions. Kinematic Equations and Free Fall As mentioned in Lesson 5, a free-falling object is an object that is falling under the sole influence of gravity. That is to say that any object that is moving and being acted upon only be the force of gravity is said to be "in a state of free fall." Such an object will experience a downward acceleration of 9.8 m/s/s. Whether the object is falling downward or rising upward towards its peak, if it is under the sole influence of gravity, then its acceleration value is 9.8 m/s/s. Like any moving object, the motion of an object in free fall can be described by four kinematic equations. The kinematic equations that describe any object's motion are: The symbols in the above equation have a specific meaning: the symbol d stands for the displacement; the symbol t stands for the time; the symbol a stands for the acceleration of the object; the symbol vi stands for the initial velocity value; and the symbol vf stands for the final velocity. Applying Free Fall Concepts to Problem-Solving There are a few conceptual characteristics of free fall motion that will be of value when using the equations to analyze free fall motion. These concepts are described as follows: • An object in free fall experiences an acceleration of -9.8 m/s/s. (The - sign indicates a downward acceleration.) Whether explicitly stated or not, the value of the acceleration in the kinematic equations is -9.8 m/s/s for any freely falling object. • If an object is merely dropped (as opposed to being thrown) from an elevated height, then the initial velocity of the object is 0 m/s. • If an object is projected upwards in a perfectly vertical direction, then it will slow down as it rises upward. The instant at which it reaches the peak of its trajectory, its velocity is 0 m/s. This value can be used as one of the motion parameters in the kinematic equations; for example, the final velocity (vf) after traveling to the peak would be assigned a value of 0 m/s. • If an object is projected upwards in a perfectly vertical direction, then the velocity at which it is projected is equal in magnitude and opposite in sign to the velocity that it has when it returns to the same height. That is, a ball projected vertically with an upward velocity of +30 m/s will have a downward velocity of -30 m/s when it returns to the same height. These four principles and the four kinematic equations can be combined to solve problems involving the motion of free-falling objects. The two examples below illustrate application of free fall principles to kinematic problem-solving. In each example, the problem solving strategy that was introduced earlier in this lesson will be utilized. Example Problem A Luke Autbeloe drops a pile of roof shingles from the top of a roof located 8.52 meters above the ground. Determine the time required for the shingles to reach the ground. The solution to this problem begins by the construction of an informative diagram of the physical situation. This is shown below. The second step involves the identification and listing of known information in variable form. You might note that in the statement of the problem, there is only one piece of numerical information explicitly stated: 8.52 meters. The displacement (d) of the shingles is -8.52 m. (The - sign indicates that the displacement is downward). The remaining information must be extracted from the problem statement based upon your understanding of the above principles. For example, the vi value can be inferred to be 0 m/s since the shingles are dropped (released from rest; see note above). And the acceleration (a) of the shingles can be inferred to be -9.8 m/s2 since the shingles are free-falling (see note above). (Always pay careful attention to the + and - signs for the given quantities.) The next step of the solution involves the listing of the unknown (or desired) information in variable form. In this case, the problem requests information about the time of fall. So t is the unknown quantity. The results of the first three steps are shown in the table below. Diagram: Given: Find: vi = 0.0 m/s d = -8.52 m a = - 9.8 m/s2 t = ?? The next step involves identifying a kinematic equation that allows you to determine the unknown quantity. There are four kinematic equations to choose from. In general, you will always choose the equation that contains the three known and the one unknown variable. In this specific case, the three known variables and the one unknown variable are d, vi, a, and t. Thus, you will look for an equation that has these four variables listed in it. An inspection of the four equations above reveals that the equation on the top left contains all four variables. d = vi • t + ½ • a • t2 Once the equation is identified and written down, the next step involves substituting known values into the equation and using proper algebraic steps to solve for the unknown information. This step is shown below. -8.52 m = (0 m/s) • (t) + ½ • (-9.8 m/s2) • (t)2 -8.52 m = (0 m) *(t) + (-4.9 m/s2) • (t)2 -8.52 m = (-4.9 m/s2) • (t)2 (-8.52 m)/(-4.9 m/s2) = t2 1.739 s2 = t2 t = 1.32 s The solution above reveals that the shingles will fall for a time of 1.32 seconds before hitting the ground. (Note that this value is rounded to the third digit.) The last step of the problem-solving strategy involves checking the answer to assure that it is both reasonable and accurate. The value seems reasonable enough. The shingles are falling a distance of approximately 10 yards (1 meter is pretty close to 1 yard); it seems that an answer between 1 and 2 seconds would be highly reasonable. The calculated time easily falls within this range of reasonability. Checking for accuracy involves substituting the calculated value back into the equation for time and insuring that the left side of the equation is equal to the right side of the equation. Indeed it is! Example Problem B Rex Things throws his mother's crystal vase vertically upwards with an initial velocity of 26.2 m/s. Determine the height to which the vase will rise above its initial height. Once more, the solution to this problem begins by the construction of an informative diagram of the physical situation. This is shown below. The second step involves the identification and listing of known information in variable form. You might note that in the statement of the problem, there is only one piece of numerical information explicitly stated: 26.2 m/s. The initial velocity (vi) of the vase is +26.2 m/s. (The + sign indicates that the initial velocity is an upwards velocity). The remaining information must be extracted from the problem statement based upon your understanding of the above principles. Note that the vf value can be inferred to be 0 m/s since the final state of the vase is the peak of its trajectory (see note above). The acceleration (a) of the vase is -9.8 m/s2 (see note above). The next step involves the listing of the unknown (or desired) information in variable form. In this case, the problem requests information about the displacement of the vase (the height to which it rises above its starting height). So d is the unknown information. The results of the first three steps are shown in the table below. Diagram: Given: Find: vi = 26.2 m/s vf = 0 m/s a = -9.8 m/s2 d = ?? The next step involves identifying a kinematic equation that would allow you to determine the unknown quantity. There are four kinematic equations to choose from. Again, you will always search for an equation that contains the three known variables and the one unknown variable. In this specific case, the three known variables and the one unknown variable are vi, vf, a, and d. An inspection of the four equations above reveals that the equation on the top right contains all four variables. vf2 = vi2 + 2 • a • d Once the equation is identified and written down, the next step involves substituting known values into the equation and using proper algebraic steps to solve for the unknown information. This step is shown below. (0 m/s)2 = (26.2 m/s)2 + 2 •(-9.8m/s2) •d 0 m2/s2 = 686.44 m2/s2 + (-19.6 m/s2) •d (-19.6 m/s2) • d = 0 m2/s2 -686.44 m2/s2 (-19.6 m/s2) • d = -686.44 m2/s2 d = (-686.44 m2/s2)/ (-19.6 m/s2) d = 35.0 m The solution above reveals that the vase will travel upwards for a displacement of 35.0 meters before reaching its peak. (Note that this value is rounded to the third digit.) The last step of the problem-solving strategy involves checking the answer to assure that it is both reasonable and accurate. The value seems reasonable enough. The vase is thrown with a speed of approximately 50 mi/hr (merely approximate 1 m/s to be equivalent to 2 mi/hr). Such a throw will never make it further than one football field in height (approximately 100 m), yet will surely make it past the 10-yard line (approximately 10 meters). The calculated answer certainly falls within this range of reasonability. Checking for accuracy involves substituting the calculated value back into the equation for displacement and insuring that the left side of the equation is equal to the right side of the equation. Indeed, it is! Kinematic equations provide a useful means of determining the value of an unknown motion parameter if three motion parameters are known. In the case of a free-fall motion, the acceleration is often known. And in many cases, another motion parameter can be inferred through a solid knowledge of some basic kinematic principles.In our classroom, we believe in teamwork and responsibility. That's why we have different classroom jobs that students can take on to help make our learning environment run smoothly. Each job comes with specific tasks and responsibilities, and it is important for the students to understand the requirements and expectations for each role. Let's take a closer look at the different classroom jobs available to our sixth-grade students: 1. Teacher's Assistant: The Teacher's Assistant plays a crucial role in our classroom. Their main responsibility is to remind the teacher of important tasks that need to be done throughout the day. This includes taking attendance, passing out papers to go home, and any other "do not forget" tasks that the teacher might need help with. The Teacher's Assistant needs to be organized, responsible, and reliable. 2. Supplies Monitor: The Supplies Monitor is responsible for ensuring that all classroom supplies are put away neatly. This includes making sure that pencils, pens, markers, and other materials are returned to their designated places after each use. The Supplies Monitor needs to be attentive to detail and have good organizational skills. 3. Technology Assistant: With our use of technology in the classroom, the Technology Assistant plays a vital role. They help students and guest teachers who might not be tech-savvy with chromebooks and other devices. The Technology Assistant should be comfortable with technology, patient, and willing to help others. 4. Room Monitor: The Room Monitor is in charge of checking desks and floors before lunch dismissal. They make sure that everything is clean and organized before we leave the classroom. The Room Monitor needs to be responsible, observant, and take pride in maintaining a tidy learning environment. 5. Line Leader: The Line Leader has the important task of leading the class and setting the pace when we transition from one place to another. They need to walk in a straight line, follow instructions, and be a positive role model for their peers. The Line Leader should be reliable, responsible, and demonstrate good leadership skills. 6. Messenger: The Messenger is responsible for taking things to the office or picking up items that the teacher needs. They need to be trustworthy, reliable, and able to follow instructions. The Messenger should also have good time management skills to ensure tasks are completed promptly. 7. Host/Hostess: When visitors come to our classroom and need assistance while the teacher is busy, the Host/Hostess is there to help. They greet visitors, provide directions, and offer any necessary support. The Host/Hostess should have good communication skills, be friendly, and approachable. 8. Guest Teacher Guide: In the event of a guest teacher, this student will help them take attendance and assist the teacher with anything they need help with. The Guest Teacher Guide needs to be responsible, reliable, and have good communication skills. They should also be respectful and supportive of the guest teacher. 9. Researcher: During whole-class discussions, if there is a question or topic that needs further exploration, the Researcher steps in. They use the internet to look up information and provide additional insights. The Researcher should have good research skills, be able to navigate online resources, and share accurate information with the class. 10. Secretary: The Secretary takes down notes when directed in the class notebook and collects any papers for absent students, placing them in their designated file. They need to be organized, attentive, and have good handwriting. It is important to note that all of these roles come with certain requirements. To be considered for any of these jobs, you must be punctual and have good attendance. This means arriving to school and class on time every day. Additionally, honesty and reliability are crucial traits for anyone taking on these responsibilities. By working together and taking on these classroom jobs, we can create an environment that is conducive to learning, organized, and supportive. Each of these roles plays a vital part in our classroom community, and we appreciate the efforts of all students who take on these responsibilities. Let's make our classroom a place where everyone feels valued and can thrive!Slide 1: • Title slide with the presentation topic: "Understanding Context in Film Analysis" Slide 2: • Introduction to the importance of context in film analysis. • Engaging visuals to capture students' attention. • Emphasize that context provides a deeper understanding of a film's meaning. Slide 3: • Definition of Context: • Context refers to the surrounding circumstances or conditions that influence the creation, interpretation, and reception of a film. • Analyzing context helps uncover layers of meaning, societal influences, and enhances critical thinking skills. Slide 4: • Historical Context: • Definition: Historical context refers to the specific time period in which a film was created and/or set. • Importance: Understanding the historical context helps us connect the film to its time period and comprehend the influence of historical events, social norms, and cultural movements. • Example: Analyzing the historical context of "Gone with the Wind" (1939) allows us to appreciate how the film reflects the post-Civil War era in the United States and addresses themes of race, class, and gender. Slide 5: • Social Context: • Definition: Social context refers to the social structures, norms, and values prevalent during the time of a film's creation and/or setting. • Importance: Examining the social context helps us understand how societal attitudes and values shape the film's narrative, characters, and themes. • Example: Analyzing the social context of "The Breakfast Club" (1985) reveals how the film explores the social dynamics and stereotypes within a high school setting, reflecting the cultural climate of the 1980s. Slide 6: • Political Context: • Definition: Political context refers to the political climate and ideologies present during the time of a film's creation and/or setting. • Importance: Understanding the political context helps us uncover political messages, power dynamics, and social commentary within the film. • Example: Examining the political context of "V for Vendetta" (2005) allows us to appreciate how the film critiques totalitarianism and explores themes of government control and individual freedom. Slide 7: • Authorial/Directorial Context: • Definition: Authorial/Directorial context refers to the background, artistic choices, and intentions of the director or filmmaker. • Importance: Analyzing this context helps us understand the director's unique vision, influences, and storytelling techniques, which shape the film's style and thematic focus. • Example: Exploring the authorial/directorial context of "Pulp Fiction" (1994) reveals Quentin Tarantino's nonlinear storytelling, pop culture references, and exploration of morality and violence. Slide 8: • Importance of considering multiple contexts together: • Analyzing multiple contexts together provides a comprehensive understanding of a film's meaning and impact. • Exploring the interplay between historical, social, political, and authorial/directorial contexts deepens our insights and enhances critical analysis skills. Slide 9: • Case studies: • Present two different films as case studies. • Example 1: Analyzing the historical context, social context, and authorial/directorial context of "Black Panther" (2018) provides insights into its exploration of Afrofuturism, cultural identity, and representation. • Example 2: Examining the historical context, political context, and authorial/directorial context of "Citizen Kane" (1941) reveals its commentary on power, media, and the American dream. Slide 10: • Summary slide: • Recap the main points about context in film analysis. • Encourage students to apply these concepts to their own analysis.RPMS Quiz: Quality vs. Efficiency 1. A teacher spends five hours creating a highly interactive digital game for a single 40-minute lesson. This is an example of prioritizing: • A) Quality over Efficiency • B) Efficiency over Quality • C) Administrative Competence • D) Resource Management • Hint: The focus is on high-level engagement, but the time investment is very high. 2. Which of the following best describes "Efficiency" in the context of the RPMS? • A) Submitting all MOVs and reports on or before the deadline with minimal errors. • B) Ensuring 100% of students pass the quarterly examination. • C) Creating the most aesthetically pleasing portfolio in the department. • D) Conducting home visits for every single student in a class of 50. • Hint: Look for the option that emphasizes timeliness and resource use. 3. Using a "template" or a "reusable slide deck" for lesson planning is a strategy to improve: • A) Efficiency • B) Instructional Diversity • C) Subject Matter Mastery • D) Classroom Discipline • Hint: Templates reduce the time spent on repetitive formatting. 4. If a teacher provides detailed, personalized feedback to every student but submits the grades two weeks late, they have achieved: • A) High Quality, Low Efficiency • B) Low Quality, High Efficiency • C) High Quality, High Efficiency • D) Low Quality, Low Efficiency • Hint: The work itself is excellent, but the timing is poor. 5. Which tool improves Efficiency without sacrificing the Quality of assessment data? • A) Automated Google Forms for multiple-choice quizzes. • B) Giving everyone a passing grade to save time on checking. • C) Writing long paragraphs of feedback on 200 paper-based essays. • D) Skipping assessments entirely to finish the syllabus faster. • Hint: Look for a balance where technology handles the "busy work." 6. When discussing Quality in your RPMS portfolio, which "Means of Verification" (MOV) is most appropriate? • A) Sample of student work with constructive teacher comments. • B) A logbook showing you arrived at school at 7:00 AM daily. • C) A certificate for attending a 1-hour webinar. • D) A photo of your organized teacher's cabinet. • Hint: Quality is evidenced by the impact on student learning. 7. The concept of "Doing the right things" (Effectiveness) represents: • A) Quality • B) Efficiency • C) Speed • D) Compliance • Hint: "Doing the right things" is about results; "Doing things right" is about process. 8. How does "Efficiency" help a teacher maintain "Quality" in the long run? • A) It prevents burnout by optimizing workload, leaving energy for creative teaching. • B) It allows the teacher to take more side jobs. • C) It ensures the teacher never has to talk to parents. • D) It proves that the teacher is smarter than their peers. • Hint: Consider the relationship between teacher well-being and performance. 9. If a teacher's RPMS rating for Quality is 5 (Outstanding) but Efficiency is 2 (Fair), what is the most likely reason? • A) The teacher produces excellent work but often misses deadlines. • B) The teacher is very fast but makes many mistakes in their reports. • C) The teacher is both slow and produces poor results. • D) The students are failing despite the teacher being very organized. • Hint: Check the gap between the high-standard output and the slow delivery. 10. What is the ultimate goal of balancing Quality and Efficiency in the PPST-RPMS? • A) To achieve sustainable professional excellence that benefits the learners. • B) To get a higher salary increase only. • C) To impress the School Head during the observation. • D) To finish the school year with the least amount of work possible. • Hint: It's about long-term growth for both teacher and student. ________________________________________ Answer Key: 1. A | 2. A | 3. A | 4. A | 5. A | 6. A | 7. A | 8. A | 9. A | 10. A ________________________________________1. Which factor is most crucial to verify first when selecting an ICT resource for instruction? A) Content alignment with the textbook B) Alignment with learning objectives C) The resource's popularity among peers D) Cost-effectiveness of the resource 2. When evaluating ICT resources, what is the purpose of checking cultural relevance? A) Ensuring it aligns with current trends B) Making sure it's accessible to all students C) Reflecting the diverse backgrounds of students D) Avoiding resources that are too complex 3. Which key aspect determines the accessibility of an ICT resource? A) How popular the resource is with students B) Its compatibility with existing technology C) Cost of using the resource D) Engagement levels it provides 4. In assessing content quality, why is accuracy important? A) To make resources easier to use B) To ensure alignment with curriculum standards C) To enhance visual appeal D) To provide a more engaging experience 5. Why is it essential for an ICT resource to offer interactivity? A) To improve download speeds B) To promote active learning and engagement C) To meet all technical requirements D) To minimize costs associated with the resource 6. What should be assessed regarding the usability of an ICT resource? A) How much it costs compared to other resources B) How easily students can navigate and use it C) How interactive it is D) Its level of engagement 7. Which of the following best describes the importance of feedback mechanisms in ICT resources? A) They reduce the need for grading B) They allow for automatic updates C) They provide immediate feedback to enhance learning D) They increase the cost-effectiveness of the resource 8. What is an advantage of resources that are scalable and flexible? A) They can adapt to different class sizes or teaching methods B) They are often free C) They do not require technical support D) They are easier to assess 9. Which tool would you use to gain structured feedback from students about an ICT resource? A) Rubrics B) Peer reviews C) Online review platforms D) Student feedback 10. When is a checklist most beneficial in evaluating an ICT resource? A) To provide structured guidelines for scoring B) For highlighting key features and requirements C) To measure student engagement D) To analyze technical support needs 11. Which of these tools helps teachers gather insights from colleagues on a resource's effectiveness? A) Online review platforms B) Student feedback C) Peer review D) Rubrics 12. In the planning stage, how can ICT benefit lesson development? A) By providing only audio resources B) By assisting in research for updated content C) By reducing the need for lesson objectives D) By limiting content access 13. During content delivery, how does ICT enhance the lesson experience? A) By allowing remote control of student devices B) By adding interactivity and visual elements C) By only focusing on text-based resources D) By limiting engagement 14. What is a key advantage of using ICT-based assessment tools? A) Reducing the need for reflection B) Tracking student progress and providing feedback C) Replacing lesson objectives D) Focusing solely on multiple-choice questions 15. Which ICT feature is most beneficial in the reflection stage of a lesson? A) Technical support options B) Feedback mechanisms for immediate assessment C) Tools for students to document learning, like online portfolios D) Interactive quizzes 16. How does ICT aid in skill development? A) By encouraging only memorization B) By fostering digital literacy and critical thinking C) By minimizing interactions with the teacher D) By restricting content variety 17. What does a cost-effective ICT resource entail? A) Being free of charge for all students B) Offering a good balance of educational value and cost C) Having the most features available D) Minimizing interactivity to reduce expenses 18. Why is teacher training crucial in ICT integration? A) To learn troubleshooting for technical issues B) To help only in the planning stage C) To reduce the need for ICT support D) To assess the cultural relevance of ICT tools 19. What challenge might schools face in accessing ICT resources? A) Lack of teacher motivation B) Availability of devices and internet connectivity C) High levels of student engagement D) Excessive interactivity 20. Why should teachers regularly evaluate the ICT resources they use? A) To determine if students enjoy using them B) To assess cost-effectiveness only C) To ensure resources remain effective and up-to-date D) To simplify lesson planning