Third graders examine and explore a variety of ways to measure length. They discuss how to measure large objects using the end-to-end method, and in small groups measure the length of the room using the end-to-end method with a...

Students identify units of measurement. In this measurement instructional activity, students predict the length and width of their hands and feet. Students discuss their findings and if their predictions were correct.

Students identify different locations on a unit circle. In this precalculus lesson, students identify the different trig properties and rewrite the equation of a circle in standard form. They use mnemonic devices to help them...

Develop an understanding of the Map, Keep, and Combine operations. The lab leads the class through the exploration of three list operations. Each task contains a self-check to measure scholars' understanding of the operation in the...

Breaking the rules is one thing, proving it is another! Learners expand on their previous understanding of congruence and apply a mathematical definition to transformations. They perform and identify a sequence of transformations and use...

The Clark University site shows and explains the graphs of the six trigonometric functions. It explains how to find an arbitrary angle measurement using trig. Also, it explains that sine and cosine functions are complementary.