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Remote Ready Biology Learning Activities has 50 remote-ready activities, which work for either your classroom or remote teaching.
Langton's Ant
Excellent execution of the Ant. I wonder--meaning no insult, have you worked with George Maydwell at all? He has a very flexible GUI for CA/etc. (SARCASim), and I'm thinking that somewhere between his application and yours, there must be a simple way to run heat-maps on them (it's been done, but I don't think on quite such a flexible rule set of degrees as yours). Now, if only there were an easy way to implement all of this in MCell...