1.  Scratch Coordinate & Movements Scratc h Coordinate and Movement

2.  JOURNAL: Write an algorithm on how to move the cat down the hall and up the stairs?

3. Handout Coordinate Sheet

4. FIND: X:0, Y:0

5. found: X:0, Y:0 FIND: X:100, Y:0

6. found: X:100, Y:0 FIND: X:0, Y:-100

7. found: X:0, Y:-100 FIND: X:200, Y:100

8. found: X:200, Y:100 FIND: X:-200, Y:150

9. found: X:-200, Y:150 FIND: X:100, Y:-180

10. found: X:100, Y:-180

11.  3 Ways to Move in Scratch “Move”, “Go to” and “Glide”

12. Moving in Scratch  Move  Moves the sprite forward a set number of steps  Go to  Sets the sprites location to a specific spot  Glide  Moves the sprite to a specific spot

13. Move  Move () Steps  Specify the number of steps  Each step is 1 pixel  The Move block is a “Motion” block  Negative steps will cause the sprite to move in the reverse direction

14. Move – Common Uses  Moving a sprite forward in an animation  Larger steps will make the sprite move faster  Smaller steps will make the sprite move slower  Making a sprite follow a mouse  The sprite will chase the cursor around the screen

15. Go to  Go to X: () Y: ()  The “Go to” block sets the sprite’s X and Y position to the specified amounts.  X and Y values are related to the coordinate plane  There is no animation in this movement block  The “Go to” block is used when a sprite needs to jump to another spot  Simplest way to move a sprite around the screen

16. Go to – Common Uses  Moving a sprite  Sprite will just appear at the indicated location  Resetting the sprites location at the beginning of a stage

17. Glide  Glide () Secs to X: () Y: ()  The Glide block moves the sprite steadily to a specified X and Y position  The sprite will move in a specified number of seconds  Smaller numbers will make the sprite move faster  Larger number will make the sprite move slower  The Glide block is like the Move block but with more precision

18. Glide – Common Uses  Fish moving in a tank  Falling objects  A sprite moving to another sprite

19. Scratch Examples Log into scratch URL: https://scratch.mit.edu/pro jects/17690143/ Click Green flag Use number keys 1, 2, 3 To show the different movements

20. Direct Instruction  All students log into Scratch  Create  Stage – Upload – baseball.sb  Code on following page

21. Baseball Code

22. STAGE: Assignment: apply castle 4 or Brick-Wall-and-Stairs

23. The End