I don't know about the younger kids, but ever since I saw this I have been thinking about the second circle they draw. It's driving me nuts.
How do they draw a circle off center?
It looks like they simply move the pen in a line. I think you must move it at a speed that would vary like a sinusoidal curve.
They do it *so* quickly and nothing else in the video is nearly as interesting as that moment.
circles
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