Students recognize the faces of the four presidents on the South Dakota quarter reverse. After discussing the duties and responsibilities of presidents, they list the contributions of the four presidents. They decide which presidents are...

Students describe elements and conditions that effect cavern life. They explain the three cavern zones and the differences of each zone. They perform various activities based on grade level.

Excellent discussion and illustration of the water cycle.

Excellent discussion and illustration of the water cycle. Explained in an easy to understand format.