Any word or term can be hijacked for derogatory purposes and often are but it doesn't mean they shouldn''t be used in their origanally intended meaning.
The link is here, however be forewarned, this site isn't free. https://www.edweek.org/ew/articles/2019/10/11/seattle-schools-lead-controversial-push-to-rehumanize.html
According to the interview with a person who is directly involved in the planning, this is taught IN math class.
I didn't notice the link before though. Either way, in light of what Castro-Gill is saying, I'd chalk that up to a bad folder organization. Or someone got confused and thought this belonged in an Ethnic Studies course.
For the record, I have absolutely no issue with this being an ethnic studies course. But it's not, it's to be incorporated into the math class.
I don't like this concept because it might cause a negative reaction in the pupil and hence their progress. I started an OU maths course infused with feminist issues, like equal pay, and pissed me off so much i packed it in. Politics should be kept out of the core subjects that are essential skills... themes need to be neutral.