Caley Table for the Symmetries of a Square
Middle and high schoolers complete Caley's table to indicate rotating a square 90, 180, and 270 degrees. They also reflect a square across the vertical and horizontal line. This one-page worksheet contains eight movements.
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Building a Quadratic Function
Grab a box of toothpicks and build a model of a dog pen in a lesson that introduces quadratic functions. Students work in groups to investigate how the area of a rectangle with a fixed perimeter varies with different lengths and widths....
7th - 10th Math CCSS: Designed
New Review How High Can I Go?
All you need to graph a quadratic? Two points and a line! Working in pairs, classmates find the roots of a quadratic. After learning how to find the axis of symmetry and its importance in finding the vertex, pairs graph several quadratic...
9th - 10th Math CCSS: Designed
Module 6: Congruence, Construction, and Proof
Trace the links between a variety of math concepts in this far-reaching unit. Ideas that seem very different on the outset (like the distance formula and rigid transformations) come together in very natural and logical ways. This unit...
8th - 10th Math CCSS: Designed
There's Gold in Them There Hills
Need to build a laser fence on Mars? In this cute maximizing-area lesson, young explorers pretend to be prospectors on Mars and must determine the best way to use 20 meters of fencing in order to maximize their area. In addition, they...
8th - 11th Math CCSS: Adaptable