Here is a Cultural Literacy worksheet on the Congress of Racial Equality (CORE). CORE was founded in 1942, and pioneered the use of nonviolent direct action in the struggle for civil rights and simple justice for Americans of African descent. It is impossible to underestimate the importance of CORE, which is why your students should learn about it. This is a half-page do-now exercise that serves as a general introduction to the organization. Needless to say there is a great deal out there about CORE and its founders.
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