The Crusades sounds like a glamorous time period in the Middle Ages full of glory—but was it? Scholars find and review the truth of the Crusades' influence on the world through the resource. The study guides, separated individually by...

High schoolers examine the attack on Pearl Harbor and how it changed the history of the United States. After watching a video from "The War", they discuss the characteristics of a "just war" and identify the laws in international...

Students are introduced to the writings of James Madison and explain why he is often called "The Father of the Constitution". Using primary source documents, they examine his view of the Bill of Rights and what he meant by faction. In...

Students notice how various images and colors update constantly as they are affected by factors such as distance, background and lighting. They also examine how optometrists developed a standard to evaluate eyesight.