Nested Loops with Turtle
Watch the turtle move as each line runs — while loop on the left, for loop on the right.
Program
while version
for version
ready
Press ▶ Play or ⏭ Step.
↺ Reset
⏭ Step
▶ Play
⏩ Finish
Speed
1×
Skip the start / check / step lines
Angled view
Top view
Drag to orbit · scroll to zoom · right-drag to pan
Draw it first!
Read the code, sketch what you think the turtle draws on your worksheet, then come back and check.
Reveal the animation
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