That’ll teach ‘em.
It certainly won’t teach the black students the material in your lame class, Ann Lesbo, but it’ll teach white students to not take your class.
As a student tutor, I always asked, “How would you solve this problem?”
I would then take time to go over pitfalls or starting steps found in that approach.
Often suggesting a “correct” approach.
Based on the answer, each white student should complete the assignment using the black students’ approach.