A 22-lesson Middle School World History unit uses a unique problem-solving approach to teach tweens economic history. After reading articles that provide background information, pupils engage in activities and simulations that require...

The second unit in the series examines the complex relationships between animals and plants in the whitebark pine community of Waterton-Glacier International Peace Park. In the first of five lessons, scholars mimic Clark’s Nutcracker...

A long time ago, a galaxy formed that contained a solar system with eight planets—or nine depending on who is counting. A collection of 22 lessons has middle schoolers examine the Outer Planets of the solar system. They calculate the...