Read about this extraordinary mammal, the Western Camel, that originated in North America during the ice age. A fascinating article with many additional sites to explore.

This lesson explores Decisions On Deadline, a free, fun, and fast-paced browser and tablet-based game where players take on the role of journalists running down stories, working against time and a limited budget while navigating a string...

What do you know about Shakespeare's tragedy "Romeo and Juliet?" Explore this informative resource filled with links to lesson plans and activities.

Explore the world of Africa through these teacher's guides. This site features teacher tools for middle school age students.

In this interactive tutorial you will explore how geologists use clues in rocks to determine the order in which rocks formed. Learn how principles of radioactivity are used to assign actual ages to rocks. Students will explore fossils...