Below is the ppt for the lesson with links to relevant video footage, as well as a handout for students. We wrote this lesson for my Grade 8 class, but it could easily be adapted to Grade 7 or 9. It takes a minimum of 50 mins to do it justice... an hour and quarter would be better.
As a university educated, gay, white, able-bodied woman, I am both a member of oppressed groups and someone with largely unearned privilege. I can't profess to fully understand the impact of carding on the black community, but I did want to empower my students of all ethnic backgrounds by discussing the issue of carding in particular and the impact of identity in general. My hope is that by making links to what we are studying in math, students would begin to see how logic and reason can be used to positively impact social change.