WAL about rotational symmetry.
Pin wheel
What we found out was when you spin the pinwheel it holds it’s symmetry.
My class made pinwheels.
If you make a small pinwheel it will spin faster than the big windmill.
And a bigger pinwheel got stuck on the handle because it was too floppy.
If you put a fan in the front of the pinwheel it spins faster.
If you use a bead for a spacer the pinwheel won’t get stuck on the handle.
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