Hi, that’s one of the topics my school also does, my teacher told my class to think about two things.
1. Why have they chosen those times (this should apply to all nea topics)
2. Wether or not the factors your talking about were also around before hand (like one my schools doing is sexism, and he told us to think about wether it happened before the times chosen, to give you a hint it did exist before)
I hope this makes sense and helps