Secondary

A trusted source of solid information of a variety of topics.
Not strictly materials to teach multiculturalism in exclusion from other topics. Nice sources to incorporate into all types of lessons.

Diversities Activities for High School
Most ideas come from //Teaching Tolerance// and other related sources.

Using Reader-Response activities to teach multiculturalism in high school.
I particularly like this source as an English teacher. There are several ideas for journal prompts and extensions for writing.