1. Unit 2 Getting Started With
Evangel College
S.2 ICT

2. Start Moving
Drag a MOVE block into the Scripts Area

3. Start Moving
Click on the block to make the cat move

4. Add a Sound
Drag out a PLAY DRUM and snap it onto the MOVE

5. Click and listen. (If you can’t hear, check volume control)
Add a Sound
Click and listen. (If you can’t hear, check volume control)

6. Add a Sound
You can choose different drums from menu

7. Programming concept: Parameter
In the script, the value which can be adjusted by the user is called a parameter.
For example, the number of steps in the Move script or the instrument in the Play Drum script

8. Start a Dance Click and try! Add another MOVE block.
Type in -10 steps.
Add another PLAY DRUM
block. Choose LOW BONGO
drum from the menu.
Click and try!

9. Programming concept: Sequence
Sequence is an ordered set of instructions.
An instruction runs after another.

10. Again and Again Drag out a FOREVER block and drop it on top of
the stack so that the mouth of the FOREVER to
wrap around the other blocks.
Click the script to run.
(Tips: You can click on any block to run a stack)
To stop, click the STOP button at the top
of the screen.

11. Programming concept: Loop
A loop repeats the execution of instructions. =
(FOREVER block
loops infinitely.
There are other
types of loops,
FOREVER IF,
REPEAT and
REPEAT UNTIL.
You can explore them!) …

12. Tips on block manipulation
To drag a stack, pick it up from the top block
If you drag out a block from the middle of a
stack, all of the blocks beneath it will come along
with it

13. Green Flag
Drag out a Green flag block and snap it on top of the stack.
Whenever you click the Green Flag,
your script will start.
To stop, click the stop button

14. Change Effect Drag out a CHANGE EFFECT block.
Click to see what it does.

15. Key Press
Drag out a KEY PRESS block and snap it on top of the CHANGE EFFECT block.
Then, press the space bar on the keyboard.

16. Summary
You have learnt how to use the following Scratch blocks to build interactive, multimedia project:
MOVE block – move the sprite
PLAY DRUM block – play drum sound
FOREVER block – loop scripts forever
GREEN FLAG block – start execution
CHANGE EFFECT block – change the sprite appearance
KEY PRESS block – accept user keyboard input

17. Summary You have also learnt the following programming concepts:
Sequence – an ordered set of instructions
Loop – repeat running the instructions
Start execution – Tell the script to start working
Stop execution – Tell the script to stop working

18. Summary
In the coming workshops, you will learn more about different categories of blocks and programming concepts.
Enjoy!