Have them listen to the I have a dream speech. And then talk about what he is talking about. It’s gonna take some research, but primary resources are the best.
We did that and it armored our kids up against the PC crowd who never read it. Content of character became a watchword for our kids.
Have them read Up from Slavery and study the life of Booker T. Washington as well. There are a slew of successful blacks pre-civil rights era. Those were good to read because they contrast sharply with the belief that blacks needed Big Government to succeed.
Desegregation actually lowered black incomes and opportunities.