[scarmig]

The vast majority of this does not belong in a math classroom. Math classrooms do not primarily cover the history or sociology of mathematics; they cover (or, at least, should cover) how to do algebra.

Perhaps those things could enrich curricula once students were actually being taught math, but schools fail at that. And some districts (e.g. SFUSD) have taken to banning the teaching of algebra in middle school because it's "inequitable."