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Spin and flip brainteaser Brainteaser

by David, 16 October 2019 | 2 comments

Brain icon

Difficulty: Tricky I’ve got a square piece of paper, with lines for writing on both sides. Right now, the lines are running up and down the page. To get the lines running left and right, I could rotate the page, but that’s too boring. Can I do it by flipping the page instead?   Scroll…

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Twisted snowflake Activity

by David, 27 September 2017 | 0 comments

A strange shape with rotational symmetry

Have you ever made a paper snowflake? Here’s a different twist on a classic craft activity.

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