A collection of study guides to accompany each of twelve episodes of a series on United States history called America The Story of Us. Each episode focuses on major events, turning points, wars, time periods, etc. The study guides...

This article list some fundamental topics for students to review over before studying biology.

This is a compreshensive study guide for the novel A Hunger Artist by Franz Kafka. It includes publication information, the characters, a plot summary, point of view, symbols, interpretations, major themes, study questions and essay...

Join teachers and students all over the country in observing the migratory patterns of birds and butterflies and the growth changes of plants as the climate changes. "Journey North" offers a wealth of resources to use as you investigate...

These simple reminders can help you organize and prepare to get the most out of the study time you have.

This comprehensive study guide covers the main terms and concepts needed for an earth science unit on determining relative ages. Review questions are included at the bottom of the study guide.

To give fellow teachers an idea for how they can teach our curriculum in a classroom setting, we are creating case studies. Here's one case study of how Feltwell Elementary School in the United Kingdom is using our curriculum in their...

This comprehensive study guide covers the main terms and concepts needed for an earth science unit on dark matter. Review questions are included at the bottom of the study guide.

This comprehensive study guide covers the main terms and concepts needed for an earth science unit on continental drift. Review questions are included at the bottom of the study guide. Part I of II.

This comprehensive study guide covers the main terms and concepts needed for an earth science unit on the composition of the atmosphere. Review questions are included at the bottom of the study guide.

This comprehensive study guide covers the main terms and concepts needed for an earth science unit on coastal pollution. Review questions are included at the bottom of the study guide.

This comprehensive study guide covers the main terms and concepts needed for an earth science unit on coal power. Review questions are included at the bottom of the study guide.

This comprehensive study guide covers the main terms and concepts needed for an earth science unit on cleaning up groundwater. Review questions are included at the bottom of the study guide.

This comprehensive study guide covers the main terms and concepts needed for an earth science unit on the earth's tectonic plates. Review questions are included at the bottom of the study guide.

This comprehensive study guide covers the main terms and concepts needed for an earth science unit on the damage from earthquakes. Review questions are included at the bottom of the study guide.

This comprehensive study guide covers the main terms and concepts needed for an earth science unit on locating earthquake epicenters. Review questions are included at the bottom of the study guide.

To give fellow teachers an idea for how they can teach the Khan Academy curriculum in a classroom setting, check out this case study. Here's one case study of how teacher Ellen Reller uses our curriculum in her classroom in Lowell High...

[Free Registration/Login may be required to access all resource tools.] This guide gives a detailed overview of mechanical waves and the characteristics of waves. Covers wave behavior, including types of interference, resonance, and the...

[Free Registration/Login may be required to access all resource tools.] This study guide looks at the definitions and postulates of surface area and volume for different solids, including composite solids and similar solids.

[Free Registration/Login may be required to access all resource tools.] Transformations move and modify geometric shapes. There are several types of transformations that all transform figures in different ways. These transformations can...

[Free Registration/Login may be required to access all resource tools.] Reasoning is a fundamental part of geometric proofs. There are several types of reasoning, many of which we innately and naturally picked up. However, the different...

[Free Registration/Login may be required to access all resource tools.] This study guide looks at similar polygons, scale factor (ratio), and triangle similarity.

[Free Registration/Login may be required to access all resource tools.] This study guide reviews how to classify polyhedra, Euler's formula, and regular polyhedra.

[Free Registration/Login may be required to access all resource tools.] This study guide focuses on polygons: convex vs concave, interior and exterior angles, and basic terminology for common polygons.