1) The document describes a concept attainment lesson about the concept of white supremacy during the post-Civil War Reconstruction era in America (1865-1877). 2) Students are given examples of statements that are either "yes" examples or "no" examples of the concept. They analyze the examples to determine common attributes of the "yes" statements and differences from the "no" statements. 3) After more examples are provided, students create a final list of critical attributes to define the concept of white supremacy, which is then used to answer questions about why race exists and the irony in definitions of the word "race."