In 1931, the Legislature selected the cactus wren to be the official state bird of Arizona.

If you’ve had much experience with Algebra and Geometry, you know that graphs are a thing.

In this episode of Study Hall: Algebra, James talks about how graphing the Quadratic Equation works.

During this lesson, students will explore the handshake problem, a classic problem in mathematics that asks, “How many handshakes occur when n people shake hands with each other?”