ScratchJr Examples: Moving a Cat Across the Screen

📚 Quick Study Guide

• 🐱 Character Selection: Begin by choosing the cat character (or any character you like!) from the character library in ScratchJr.
• 🧱 Adding Blocks: Use the movement blocks (blue blocks) to control the cat's movement. The right arrow block makes the cat move to the right.
• 🔢 Setting Distance: Adjust the number on the movement block to determine how far the cat moves with each step.
• 🎬 Start Event: Use the 'green flag' block to start your animation when the green flag is tapped.
• 🔁 Repeating Actions: To make the cat move continuously, use the repeat block (red block) to repeat the movement steps.
• ⏱️ Speed Control: Adjust the speed of the cat by adding wait blocks (orange blocks) between the movement blocks. A smaller wait time makes the cat move faster.
• 📍 Positioning: You can change the starting position of the cat by dragging it to the desired spot on the screen before running the program.

Practice Quiz

1. Which category of blocks controls the movement of a character in ScratchJr?

   1. Red
   2. Blue
   3. Green
   4. Yellow

2. What block is typically used to start a ScratchJr project?

   1. The orange 'stop' block
   2. The blue 'move right' block
   3. The green 'flag' block
   4. The purple 'sound' block

3. Which block can be used to make the cat move repeatedly across the screen?

   1. The 'go home' block
   2. The 'repeat' block
   3. The 'say' block
   4. The 'hide' block

4. Which block helps to control the speed of the cat's movement?

   1. The 'grow' block
   2. The 'shrink' block
   3. The 'wait' block
   4. The 'jump' block

5. What happens if you change the number on the 'move right' block?

   1. It changes the color of the cat.
   2. It changes the distance the cat moves.
   3. It changes the sound the cat makes.
   4. It changes the direction the cat moves.

6. Where can you select the cat character in ScratchJr?

   1. The block palette
   2. The character library
   3. The stage settings
   4. The sound editor

7. How can you change the starting position of the cat on the screen?

   1. By using the 'go home' block
   2. By dragging the cat to a new position before running the program
   3. By using the 'hide' block
   4. By using the 'grow' block