Annenberg Foundation
Annenberg Learner: Renaissance: Exploration and Trade
Detailed introduction on exploration and trade during the Renaissance. Provides an overview of the tools created during the Middle Ages that made such travels by sea possible as well as insight into the types of goods traders sought in...
Pennsylvania Historical and Museum Comission
Explore Pa History: Making Steel
Examine the historical and economic impact of the Pennsylvania's steel industry. Included in this historical account are video, maps, and pictorial artifacts of this era.
NASA
Nasa: Precipitation Towers: Modeling Weather Data
This lesson uses stacking cubes as a way to graph precipitation data, comparing the precipitation averages and seasonal patterns for several locations. Variations on the lesson can accommodate various ages and ability levels. Learners...
PBS
Wnet: Thirteen: Africa: Teacher's Guide
Explore the world of Africa through these teacher's guides. This site features teacher tools for middle school age students.