First graders examine the significance of the Louisiana Purchase and the journey of Lewis and Clark's Corps of Discovery. They become familiar with the features of the Keelboat Nickel reverse and identify trade goods used by Lewis and...

Students explore the world of fractal images and the mathematics behind them. They explore fractal sites on the Internet. They create their own fractal designs. They publish a calendar displaying their favorite fractal art.

Young scholars consider the role of Sacagawea as part of the Corps of Discovery. In this Lewis and Clark expedition lesson, students discover details about Sacagawea's wampum belt and then create their own wampum belts using their...

Students explore the history of our mail system. In this postal lesson plan, students evaluate mail as a means of communication, create a mail system in their classroom where they can send and receive mail. Once the students receive...