Tolerance.org is an excellent resource for teachers of diverse cultures. I love how this lesson uses a popular Dr. Suess book, The Sneetches, to teach elementary students about privilege and discrimination.
I love to read information from professional networks, who work to improve education for culturally diverse students. This resource provides very thought-provoking and impactful ideas for ways teachers can be prepared for working with diverse students and their families.
This article provides an excellent summary of culturally responsive education, including ways in which teachers can help students appreciate not only their own culture, but the cultures of others as well.
I found the list of 12 key elements for effective teaching of diverse students quite helpful. Also, the way each a strategy is presented, in the context of how it would look in the actual classroom, makes this chapter one of my go-to resources.