Debating definitions has long been one of the favourite pastimes of math teacher Twitter. (see, for example, #sandwichchat or #vehiclechat). Recently, and in a move of pedagogical brilliance, the collegial tone of such debates was soured by an ongoing feud between Shelby Strong and Zak Champagne.
The object under debate: The trapezoid.
Both teams made their case and canvassed for support. Shelby argued for an inclusive definition, Zak argued for an exclusive one, and math teachers aligned themselves in one camp or the other: #TeamInclusive or #TeamExclusive. (You can pledge your allegiance in apparel form here or here.)
I was more than happy to take my place on the sidelines, just hoping both teams had fun, until …
Ordered my Team Inclusion T-Shirt (and a few others) this morning.
— Jamie Mitchell (@realJ_Mitchell) October 11, 2021