Students calculate the six trigonometric identities. In this algebra lesson, students verify other identities using the basic trigonometric identities of sine, cosine and tangent. They complete a worksheet with hints and then are graded...

Seventh graders collect data and make predictions. In this geometry lesson, 7th graders work in tiers collecting data and plotting it. They make inferences and predictions about their collected data.

Young scholars explore the importance of the Platte River to the state of Nebraska. They investigate the river's historical, social, economic, and political importance to the development of Nebraska. Students explore the ecosystem of the...