This document summarizes research on teacher trainings that target beliefs about cultural diversity. It finds that such trainings can positively impact pre-service teachers' cultural diversity beliefs, but that studies have methodological weaknesses. It recommends integrated, multidimensional trainings that combine educational and psychological perspectives, and comprehensively address beliefs through experiential learning and systematic evaluation of effects on both beliefs and teaching behaviors. The goal is to better prepare teachers to acknowledge and challenge their own beliefs to ensure equitable education for all students.