Revision, Doubt and Practice (RDP -2)

1. Motion Blocks & Events (Class 5 Recap)

Glide Random Block

• Definition: Moves a sprite smoothly to a random location over a set duration.
• Why use it?
  • Creates natural movement in animations and games.
  • Adds randomness to sprite behavior.
• Example: Making a ball move to different places randomly.

Point in Direction Block

• Definition: Rotates a sprite to face a specific direction before moving.
• Directions in Scratch:
  • 0° → Up
  • 90° → Right
  • 180° → Down
  • -90° → Left
• Example: Making a sprite change direction when clicked.

Events: Green Flag & Mouse Click

• Definition: Allows sprites to respond to user interactions.
• Why use it?
  • Makes animations interactive.
  • Helps trigger actions in Scratch projects.
• Example: A sprite moves to a random position when clicked.

2. Keypress Events & Say Block (Class 6 Recap)

Keypress Events

• Definition: A sprite follows an action when a key is pressed.
• Why use it?
  • Makes games interactive by allowing keyboard controls.
  • Useful for sprite movement and other actions.
• Example: Moving a sprite using arrow keys.

Say and Think Blocks

• Definition:
  • Say Block: Displays a speech bubble (timed or non-timed).
  • Think Block: Displays a thought bubble (timed or non-timed).
• Why use them?
  • Helps create dialogues in animations.
  • Makes characters more expressive.
• Example: A sprite introduces itself when clicked.

Doubt Session

• Allow students to ask questions about any previous concepts.
• Discuss common mistakes (e.g., sprite not moving, incorrect directions).
• Provide live debugging assistance for students facing issues with their Scratch projects.

Practice Project: Interactive Moving Character

Objective:

Create a character that moves using keypress events, speaks when clicked, and glides randomly when the spacebar is pressed.

Steps to Create the Project:

1. Choose a sprite (e.g., a cat, robot, or a person).
2. Set the initial position: Move the sprite to the starting point.

3. Enable movement using keypress events:

4. Make the sprite talk using Say Blocks:

5. Make the sprite glide randomly when the spacebar is pressed:

6. Run the project and test interactions.
   
   ✅ Expected Outcome: The sprite moves with arrow keys, talks when clicked, and glides randomly when the spacebar is pressed.