[Free Registration/Login may be required to access all resource tools.] Definition of motion and how it is related to frame of reference.

A great resource for putting together all of a student's possible sources onto note cards for later using in citing.

This is a collection of 19 Grade-Leveled texts (6-12) on the topic Modern Democracy in America. How does democracy function in modern-day America? Learn how a bill becomes a law, the role of American presidents, and much more in this...

This is a collection of 21 Grade-Leveled texts (4-12) on the topic International Revolutions. The world's had its fair share of international revolutions as people around the globe sought to create meaningful change. Learn about some of...

This is a collection of 27 Grade-Leveled texts (4-12) on the topic Native American History. Before European settlers came to North America, millions of native people lived in many unique societies. Explore the history of Native Americans...

This is a collection of 26 Grade-Leveled texts (6-11) on the topic The Holocaust. The Holocaust was one of the worst genocides in history, in which Adolph Hitler's Nazi Germany killed over six million Jews and five million others deemed...

This is a collection of 29 Grade-Leveled texts (6-12)on the topic The Civil War. The American Civil War lasted for only 5 years but divided the country along bitter lines as the North fought to keep southern states from seceding from the...

This is a collection of 34 Grade-Leveled texts (4-12)on the topic The Civil Rights Movement. The Civil Rights Movement emerged after nearly a century of little progress for African Americans following the end of slavery. Explore the...

This is a collection of 6 Grade-Leveled texts (7-12) on the topic Ancient Egypt. Egyptian civilization is over 5,000 years old. While modern Egypt is different in many ways, the influence of Ancient Egypt can still be felt along the...

This is a collection of 47 Grade-Leveled texts (6-12) on the topic Influential Speeches. What makes a great speech, and what makes a great speech memorable? Study some of the most influential speeches in history and learn how they...

This is a collection of 16 Grade-Leveled texts (6-12) on the topic The Cold War. After America and the Soviet Union fought as allies in World War II, a new "cold" war emerged between the two superpowers characterized not by direct...

This is a collection of 13 Grade-Leveled texts (6-11) on the topic Ancient Rome. Ancient Rome was one of the most influential republics and empires in recorded history. Learn more about how the republic and empire emerged and about the...

This is a collection of 13 Grade-Leveled texts (7-11) on the topic Ancient Greece. How much can we credit today's art, philosophy, and democracy, among other fields of study, to Ancient Greece? Explore Ancient Greece and discover how the...

Media-rich resource features extensive mapping tools including activities, games, reference, printables, and more.

[Free Registration/Login may be required to access all resource tools.] The video compares objects to one meter and gives the height of an 8 year old child as a reference for the length of one meter. From there, students have to...