Lesson: 8 - Motions, Looks and Standard Events

Purpose : Students learn programming concepts. (Motion, Looks, Basic Events).

Materials Required

Scratch 3.0

Curriculum Content 6.3) Costumes, 6.4) Motion, 6.5) Looks.

Prior knowledge

General keyboard and mouse skills. Ability to use applications on the computer without much help. Understanding of Sprites and Backdrops.

Exercises

Exercise:1


  1. Insert a beach backdrop and add two sprites. They walk towards each other and say hello, hai when they meet.


Exercise Video


  1. Click here to view the model view for exercise-1.

Exercise:2


  1. A boy moves from left to right. If he touches the edge of the stage, the costume of the sprite and the background should change. Then the boy will move back to the left side. The same thing should keep repeating. When the sprite hits the edge and the background changes, the boy sprite should say something about the new background like “I am now entering a forest” or “I am going to eat in the restaurant”.

Exercise Video


  1. Click here to view the model view for exercise-2.

Exercise:3


  1. Add uploaded costumes to a sprite. The sprite needs to move towards the mouse pointer. Every 2 seconds the costume of the sprite should change. Repeat costume change to simulate walking movement.

Exercise Video


  1. Click here to view the model view for exercise-3

Solutions


  • Click here to view the sb3 file to complete exercise-1.
  • Click here to view the sb3 file to complete exercise-2.
  • Click here to view the sb3 file to complete exercise-3.

    • Teacher's Instruction
    1. Recall about costumes for Sprites.
    2. Clarify the difference between a Backdrop and a Sprite.
    3. Explain what events are.
    4. Teachers should show Students how to change a Sprite’s looks by changing the Sprite’s costumes and how to make a Sprite move.
    5. Students can experiment with move, glide, changing X or Y etc.