1. Understanding the Geometric Shape Code
Intro to scratch
Understanding the Geometric Shape Code

2. The interface

3. Stage/Canvas
Script Area
Block Palette
Sprites Pane

4. Block types What types of blocks exist in Scratch?
There are a 145 blocks total in Scratch 2.0.

5. Hat blocks Used to start a script
Found on the Control or Event palette
Most commonly used ‘Hat Blocks’ are the When Flag Clicked and When Key Pressed.
When I start as a Clone is the only ‘Hat Block’ in the Control palette.
There are eleven ‘Hat Blocks’ in Scratch 2.0.

6. Stack blocks Used to create the script
Found in most palettes except Operator palette
There are 77 Stack blocks.

7. Boolean Block Reports true or false
Found in Sensing, Operator, or Variable palettes
There are 13 Boolean Blocks in Scratch 2.0.

8. Reporter Blocks Contains a value (ie string, integer)
Found in most palettes
There are 37 reporter blocks.

9. ‘C’ block Perform conditions or loops
All are found within the Control palette
There are five C blocks.

10. Cap Block Stops the script Found within the Control palette
There are two Cap blocks.

11. Blocks
What blocks did we use?

12. Motion blocks

13. Motion and Stack block
Moves the sprite forward one pixel, in the direction the sprite is facing
Motion and Stack block
Turns the sprite the specified amount of degrees, clockwise or counter- clockwise
Motion and Stack block
Sets the sprite’s X and Y position to the specified amounts

14. Pen blocks

15. Pen and Stack block
Clears the screen of everything on the canvas except the sprite
Pen and Stack block
The sprite leaves a continuous pen trail wherever it moves
Pen and Stack block
The sprite stops leaving a pen trail when it moves

16. Increments or decrements a pen’s color by the specified amount
Pen and Stack block
Sets the pen’s color to a specified color with the color- picker or a numeric value
Pen and Stack block
Increments or decrements a pen’s color by the specified amount
There are 199 color values.

17. Pen and Stack block
Sets the pen’s shade to a specified amount
Pen and Stack block
Changes the pen’s shade by a specified amount

18. Data Blocks
Variable Blocks

19. Variable and Stack block
The variable is set to a specified value
Variable and Stack block
The variable is incremented or decremented by a specified amount

20. Variable and Stack block
Shows the specified variable’s Stage Monitor
Variable and Stack block
Hides the specified variable’s Stage Monitor

21. Event Blocks

22. Events and Hat block
Scripts that have this Hat will activate when the Green Flag is clicked
Events and Hat block
Scripts that have this Hat will activate when the specified key is pressed

23. Control Blocks

24. Control and C block
Blocks within this block will repeat a given amount of times before continuing with the rest of the script
Control and C block
Blocks within this block will repeat until the condition is met before continuing with the rest of the script

25. Operator Blocks

26. Operators and Boolean block
Checks to see if the first value is equal to the other value(s)
Operators and Boolean block
Joins two Boolean blocks so either one can be evaluated
Operators and Boolean block
Checks if the first value is greater than the other value(s)

27. Geometric code

29. Challenge

31. Challenge

33. Challenge

35. Challenge