Resource Collection

Trig River

Lesson Plan
Students learn about and use a right triangle to determine the width of a „pretend“ river. Working in teams, they estimate of the width...

A Geometric Proof of the Pythagorean Theorem

Lesson Plan
Students will see an animated presentation of the proof of the Pythagorean Theorem. This animated PowerPoint presentation uses shearing and the...

Ratios

Demonstration
This set of instructional materials and problems helps students understand ratios and proportions, starting with a simple review and progressing into...

Solving Linear Inequalities: Introduction and Formatting

Demonstration
From Elizabeth Stapel at Purplemath, this module helps students understand how to solve linear inequalities with an introduction to the topic using...

Vector Voyage!

Lesson Plan
Students use vector analysis to understand the concept of dead reckoning. They use vectors to plot a course based on a time and speed. Then they...