Interactive
CK-12 Foundation

Unit Circle: Medieval Castle Defense

For Students 10th - 12th Standards
Who needs a plan — let trigonometry protect you! Pupils determine the angle of an approaching enemy to a village wall. The scholars determine the exact value of trigonometric functions for the angle. Class members use trigonometry to...
Lesson Plan
Curated OER

Young Engineers: Understanding Engineering Through Cooking

For Teachers 2nd
Second graders explore different engineering careers. In this math lesson, 2nd graders create a winning cooking recipe. They role play a mock cookie sale during the culminating event.