You can play with Simon’s illusion in Geogebra online at: https://www.geogebra.org/m/aevtyumr
a homeschooling blog about Simon, a young mathematician and programmer, and his little sister Neva. Visit https://simontiger.com
You can play with Simon’s illusion in Geogebra online at: https://www.geogebra.org/m/aevtyumr