Page 149 - ScienceStd4

11. In the second program, inside the ‘when key pressed’
block, change the arrow to the ‘down arrow’. Then, inside
the ‘point in direction’ block, change the degrees to 180.
The program will change, as shown in Figure 50.
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Figure 50: A duplicated program with modified degrees and steps
12. Make another duplicate (as you did in step number 9).

Place that program on the right side. Then, change the
arrow to the ‘right arrow’ and set the direction to 90
degrees.

13. Make another duplicate (as you did in step number
11). Place that program on the left side. Then, change
the arrow to the ‘left arrow’ and set the direction to 270
degrees. Those degrees will automatically adjust to ‘-90’.

14. You will have the completed programs, as shown in Figure
51.

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