The folded sheet looks a bit like the folded maps you can buy at gas stations. But instead of multiple steps to unfold it, all you need to do is grasp the corners of the paper and pull.

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Make the new shorter sides touch. Then, unfold this step. 3. Fold the corners on the crease down so they meet in the middle. When this is done, you’ll have a strip of paper left over on the bottom.

Wiley. "Self-folding origami: Chemical programming allows Nafion sheets to fold and refold." ScienceDaily. ScienceDaily, 23 June 2017. <www.sciencedaily.com / releases / 2017 / 06 / 170623110532.htm>.