Lesson Plan
Curated OER

Rhombi, Kites, and Trapezoids

For Teachers 9th - 12th Standards
High schoolers identify the number of diagonals for each polygon. In this geometry instructional activity, students identify the polygons based on their diagonals and the way it intersect. They create visuals using the navigator to see...
Lesson Plan
Yale University

Airplane Mathematics

For Teachers 6th - 8th
The history of aerodynamics is rich with experimentation and international collaboration. Author Joyce Bryant relays this dynamic past and provides math word problems using the formula of lift, the force that makes airplanes fly. She...