HYKwCC-CH02-S01-WhatIsScratch

The stage is the area on the screen where all the action takes place in a Scratch program. It is where sprites are displayed and interact with each other.

• Base
• Scratch
• Stage
• Slide

Running a program in Scratch means starting and executing it. This is done by clicking the green flag above the stage, which triggers the program to run.

• Defining a java class
• Creating a class hierarchy
• Interactive mode
• Running a program

Colored blocks are the building blocks of code in Scratch. They are selected and joined together to create scripts, which are a set of instructions for the program.

• Programming code pieces
• Scripts
• Colored blocks
• Colored lines and symbols

The forever block is a programming block in Scratch that keeps a sprite moving endlessly in a program. It is used to create continuous motion or looping actions.

• If on edge, bounce block
• If-then-else block
• Repeat block
• Forever block

Scripts are sets of instructions that make sprites move, speak, and perform actions in a Scratch program. They are created by joining together programming blocks.

• Processes
• Actions
• Sprites
• Scripts

A background image is an image that can be added to the stage in a Scratch program. It sets the scene for the program and provides a visual backdrop.

• Background image
• Stage
• Preview pane
• Outline view

The if on edge, bounce block is a programming block in Scratch that makes a sprite bounce when it reaches the edge of the screen. It prevents sprites from going off-screen.

• Background image
• If on edge, bounce block
• Forever block
• Next costume block

The next costume block is a programming block in Scratch that changes the appearance of a sprite with each movement. It allows for sprite animation and visual variation.

• Next costume block
• Background image
• Running a program
• If on edge, bounce block

A project in Scratch is a saved work that includes sprites, backgrounds, sounds, and scripts. It is a complete program that can be shared and further developed.

• Stage
• Process
• Project
• Program

Scratch is a visual programming language that allows you to create games and animations by joining together colored blocks of code.

• Scratch
• Gouge
• Stage
• Scripts