What is the best way to prepare for "multiculturalism?"

In class I heard a lot of great ideas like, to have a few classes for our major dedicated to learning a different language. To me that is a great idea because there will be students in your classroom where English might not be their "first" language and it would help the student if you had some idea of their language, and with taking a foreign language that would benefit greatly. Another thing I heard was to "bridge the gap" meaning to not teach the student to be white, but to teach them in ways where it is the best way for them to learn. Hearing all these ideas in class really made me realize that we still have a long way to go.