Scratch

The order of steps

Forever and repeat can be used for iteration (repeating a series of instructions)

if and if-else check for a condition

the variable blocks allow you to create variables and use them in a program. the bariables can store numbers or strings.

the list blocks allow for storing and accessing a list of numbers and strings.

'When key pressed' and 'when sprite clicked' are examples of event handling - responding to events triggered by the user or another part of the program.

Launching two stacks at the same time creates two independent threads that execute in parallel.

'broadcast' and 'when I receive' can coordinate the actions of multiple sprites. Using 'broadcast and wait' allows synchronization

'ask and wait' prompts users to type. 'answer' stores the keyboard input.

'pick random' selects random integers within a given range.

'and, or, not' are examples of boolean logic.

'mouse_x, mouse_y, loudness' can be used as dynamic input for real time interaction

you can design interactive user interfaces in Scratch, for example, using clickable sprites to create buttons.

a user defined object (character)

to change the look of a sprite you give the sprite a different . . ..