MrW's Computing Blog

1. Draw some simple patterns on this Roman pattern ideas j2e5 file.  Here are some ideas.
2. Create the instructions in LOGO to draw your chosen one.
3. j2launch – j2code – LOGO
4. Click on Level 3
5. Start your program with
   • reset
     setpensize 5
     1. For each instruction you add, test it
     2. Make sure:
        1. the arrow finishes at the original level and across to the right a bit
        2. the arrow is pointing UP at the end of your instructions
6. 
7. Put this above your instructions (to move it to the top corner)
   • pu setxy -240 180 pd
   • Test your code – you might need to change the numbers so that your shape fits on the screen.
8. Repeat your shape by adding in this:
   • repeat 4
   • [
   • your instructions
   • ]
9. Edit your code.  Can you:
   1. Make the shape smaller by changing the fd numbers?
   2. Make more shapes so it takes up the whole length of the screen?
10. Now put your code inside another repeat to get the four sides of the square:
    1. repeat 4
    2. [
    3. all of your shape code so far including the repeat
    4. rt 90  (to turn the corner)
    5. ]

Success steps:

• Copy instructions carefully
• Use fd, lt, rt with a space and a number
• Press play to run program
• Make instructions to draw simple shapes including forward, left and right
• Check instructions carefully for mistakes (bugs)