Scratch

Problem Statement

A clear concise description of the task to be completed

Script

A collection of stacks that when clicked will run a program in Scratch

Algorithm

A detailed sequence of actions to perform to accomplish some task

costume

Different look for a Sprite

Sequence

Identifying a series of steps for a task

Block

Individual graphic instructions in Scratch that snap together

Conditionals

Making decisions based on conditions

Parallelism

Making things happen at the same time

sprite

Objects used in Scratch

Events

One thing causing another thing to happen

Storyboard

Pre-visualizing an animation in a comic book format

Loops

Running the same sequence multiple times

stack

Several blocks snapped together that create an instruction for a sprite in Scratch

Data

Storing, retrieving, and updating values

Operators

Support in mathematical and logical expressions

stage

The area where Scratch stories, games, and animation come to life

Background/Backdrop

The different appearances of the stage

Scratch

a programming language where you drag script blocks together to create a series of commands

looks tab

a tab containing script blocks that allow you to change the appearance of sprites

pen tab

a tab containing scripts that display sprite movement

control tab

a tab containing triggers that tell the sprites what should happen, and when

list

a variable with multiple values

broadcast _

action allowing signal to be given to other sprites in the project telling them to do something

Example of a Loop

activates the script within it for an endless amount of time

move _ steps

changes the location of the sprite by the amount of units specified

go to x:_ y:_

changes the sprite's location to the specified coordinate

motion tab

contains script blocks that create sprite movement

sounds tab

contains scripts that allow you to assign sounds to your scripts

debugging

fixing flaws in programs

variables tab

tab allowing the creation of data that changes and is dependent on other data

sensing tab

tab containing scripts allowing the sprite or user to interact with the project

when _ key pressed

trigger forcing script to be activated when the designated key is pressed

when flag clicked

trigger forcing script to be activated when the green flag is clicked

when I receive _

trigger forcing sprite to activate script when broadcast with same name is sent