Intro to Scratch
Scratch is a free program that teaches coding using colourful blocks instead of typed text. You snap blocks together like puzzle pieces to make characters move, talk, and play games. Scratch makes coding fun for beginners.
🧩 Snapping Code Blocks
when 🟢 clicked
move 10 steps
say "Hello!" for 2 seconds
Parts of the Scratch Screen
- Stage – The area where your character (called a sprite) moves and acts
- Sprite – A character or object you control with code
- Block Palette – A list of colourful code blocks you can use
- Script Area – Where you drag and snap blocks together
Block
Palette
Palette
Script Area
🐱
Block Categories
| Category | Used For |
|---|---|
| 🟦 Motion | Moving sprites around the stage |
| 🟪 Looks | Changing appearance, speech bubbles |
| 🟨 Events | Starting a script, like when clicked |
| 🟩 Sound | Playing sounds and music |
Your First Script
- Click the Events category
- Drag "when green flag clicked" to the script area
- Click Motion and drag "move 10 steps" under it
- Click the green flag above the stage to run your script
🔑 Key Terms
- Sprite – A character or object controlled by code in Scratch
- Script – A group of blocks snapped together to perform actions
- Stage – The area where the sprite moves and performs
✏️ Exercise
- What is a sprite?
- Which block category has "move steps" blocks?
- What do you click to run a Scratch script?
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