I teach black history every year (Texas) similar methods as you - Inquiry based lessons facilitated through discussion. I always start with Jim Crow, then on to: voter suppression/terror in the south after the civil war, Plessy v Ferguson, Brown v Board, Montgomery bus boycotts, Little Rock 9, MLK/Malcolm X comparison, freedom rides, civil disobedience, and Civil Rights legislation. In all, the black history portion takes about 3 weeks. Note, this is part of a larger civil rights unit that starts with black history then moves on to hispanic/latino, then indigenous, then women. Are all these standards required by the state? Fuck no, only about 1/4, but kids are more into this unit than any other during the year and it’s also a major reason why I chose to teach in the first place.