Michael Pershan asked:
Students don't like to write about their reasoning. They don't present their work in a way that allows anyone else to comprehend their path to a solution. But we want kids to write about their reasoning. Conflict! Drama!
Why do kids hate writing about math?
I am currently trying to grade my students arguments (as prosecutors) for the murder mystery. Some of them really got into it. Most still didn't explain the math well. My take on this is that students will write (maybe even well) if we give them a good enough context.
In the other conversation, Mr. Honner blogged about what happens when you zoom in super far on Desmos, looking for the hole in a rational function. It gets a bit crazy. The conversation got more interesting for me when Alan Eliasen started explaining "interval arithmetic", which I had never heard of.