Daniela Ortiz has a great free resource to help them learn while exploring the racism of Europeans!
https://archive.org/stream/TheAbcOfRacistEurope/ABC_OF_RACIST_EUROPE_ortiz#page/n5/mode/2up
A is for Airplanes that deport innocent migrants back to their deaths
B is for Borders that only white racists can cross both ways
C is for Colonialism...