What does the Move block do in Scratch Jr. for Kindergarten?

📚 What is the Move Block in ScratchJr?

The Move block is one of the fundamental commands in ScratchJr that allows your characters (called sprites) to move across the screen. It's like telling your character to take a certain number of steps forward or backward.

📜 History and Background

ScratchJr was created by the MIT Media Lab to introduce young children (ages 5-7) to the world of computer programming. The Move block is a core element designed to make coding accessible and fun, allowing kids to create interactive stories and games without needing to understand complex syntax.

✨ Key Principles of the Move Block

• 📏 Distance: The Move block tells the sprite how far to move. The number on the block indicates the number of “steps” the sprite takes. Each step is a small unit of distance on the screen.
• ➡️ Direction: By default, the Move block moves the sprite forward (to the right). Other blocks, like the turn blocks, can change the sprite's direction.
• ➕ Positive and Negative Values: You can use positive numbers to move the sprite forward and negative numbers to move it backward. For example, a “Move 5” block moves the sprite 5 steps forward, while a “Move -5” block moves it 5 steps backward.
• 🧱 Combining Blocks: The Move block can be combined with other blocks, like the sound block or the looks block, to create more complex actions. For example, you can make a character move and say something at the same time.

💡 Real-World Examples

Here are some examples of how you can use the Move block in ScratchJr:

• 🐾 Making a Character Walk: Use a series of Move blocks to make a character walk across the screen. You can add pauses between the Move blocks to make the walking look more natural.
• ⚽ Creating a Simple Game: In a game, you can use the Move block to control a character's movement. For example, you can make a character move when the user presses a button.
• 🎬 Animating a Story: You can use the Move block to animate characters in a story. For example, you can make a character move towards another character to have a conversation.

🕹️ Practice Activity: Moving a Sprite

Let's try a simple activity. We will make the ScratchJr cat move across the screen.

1. Open ScratchJr on your tablet.
2. Select the cat sprite.
3. Drag a 'Start' block (the green flag) to the coding area.
4. Drag a 'Move' block and attach it to the 'Start' block.
5. Change the number on the 'Move' block to '5'.
6. Tap the green flag. Watch the cat move!

🧭 Conclusion

The Move block is a simple but powerful tool for creating movement in ScratchJr projects. By understanding how the Move block works, children can begin to create their own interactive stories and games. Experiment with different values and combine the Move block with other blocks to create even more complex and interesting animations.