The project below has one sprite with four short pen-drawing scripts, labeled A–D in their comments: they draw a spike (move forward and back), slow it down with waits, add a half turn ("do a 180"), and use repeat to automate the whole thing. Perform each experiment several times and read the comments as you go — the goal is to figure out how turning angles really work.

Then keep experimenting with the last script: try a quarter turn (90 degrees), a tenth of a turn (36 degrees), and adjust the repeat count until the sprite ends up facing the way it started. Figure out — before trying it — what turning angle makes a five-spoke asterisk, and finish by drawing a three-spoke asterisk.

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