https://www.linegames.org/id/20-Squares-codes/280224363431/?aff3DCJLE

• URL:
• Source code: https://www.linegames.org/id/20-Squares-codes/280224363431/?aff3DCJLE.zpp
• full page QR code: QRCodes/https%3A%2F%2Fwww.linegames.org%2Fid%2F20-Squares-codes%2F280224363431%2F%3Faff3DCJLE.png

Follow the link or scan the QR code from a mobile device to begin.

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This module was created by Peter Beyersdorf and is licensed under the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. Attribution for reused content along with a full list of available modules is at the AR Physics Home.