1. Scratch ： Animation and game programming Task 2: A cat and a dog

2. Observation and discussion What can we observe from the demo? How to make it?

3. 1. Basic setting How many sprite do we need? Give it/them name(s) and set rotation.

4. 2. Add new costume for the Dog. Choose the Dog

5. 3. Edit costume of the Cat. Choose the Cat

6. 4. Let the Cat say "Hello !” when it meets the Dog. At script area of cat Which block can we use to check condition?

7. 4. Let the Cat say "Hello !” when it meets the Dog. In the condition, which block can we use?

8. 4. Let the Cat say "Hello !” when it meets the Dog. We also need to use

9. 5. let the Dog say "Hello !" when it meets the Cat? At script area of dog Copy scripts from the Cat.

10. Scripts

12. Conclusion: What do we learn? 1. Basic setting – How to add new sprite. 2. Add new costume for the Dog. – How to add new costume. 3. Edit costume of the Cat. – How to edit a costume.

13. Conclusion: What do we learn? 4. Let the Cat say "Hello !” when it meets the Dog. – "IF" – Add condition 5. Let the Dog say "Hello !" when it meets the Cat? – How to copy scripts.

14. P.S.1 ： Scratch is developed by the Lifelong Kindergarten Group at the MIT Media Lab. See http://scratch.mit.edu.http://scratch.mit.edu P.S.2 ： Materials are provided by Mr. CHENG Che Hung of NLSI Lui Kwok Pat Fong College.