MrW's Computing Blog

1. Log into j2e – j2code – LOGO
2. Click on “Level 3”
3. Type:
   • reset
   • setpensize 5
   • fd 20
4. Now press play – it should draw a short line (length 20)
5. Try changing the 20 to other numbers and press play to see what happens.
6. Now change your code to:
   • fd 30
   • rt 90
   • fd 30
   • lt 90
7. Press play – you should get this: 
8. Now add this to your code:
   • pu
     setxy -200 50
     pd
9. Challenge 1:  Make this shape by typing more instructions: 
10. Now add this to your code:
    • pu
      setxy 130 100
      pd
11. Challenge 2: Now make a square:  
12. Now add this to your code:
    • pu
      setxy -140 -140
      pd
13. Challenge 3:  
14. Now add this to your code:
    • pu
      setxy 140 – 140
      pd
15. Challenge 4: 

Is there any way we could make our code simpler?  Some of the algorithms repeat instructions.

 

Success steps:

• Copy instructions carefully
• Press play to run program
• Make instructions to draw simple shapes including forward, left and right
• Check instructions carefully for mistakes (bugs)