"How did the slavery system undermine the United States' democratic principles?" This question launches a study of how the Preamble to the Declaration of Independence, Article I, Section 2 of the U.S. Constitution, and Article IV,...

"Words, words, words." Despite Hamlet's opinion, words can be significant. In this inquiry lesson, middle schoolers learn how the words in Harriet Beecher Stowe's Uncle Tom's Cabin, in the view of many, lead to the American Civil War. To...