Truchet 3x3

Author:
Renert School, Diego Lieban
Thank you Diego Lieban for this activity!

Click on the center of each square to flip it and on the corners to rotate it.

source: [url=http://xahlee.info/math/Truchet_tiles.html]http://xahlee.info/math/Truchet_tiles.html[/url] accessed in 03.11.2018.
source: http://xahlee.info/math/Truchet_tiles.html accessed in 03.11.2018.