1.+Overview

=How high is that pole?= Grade Level: 10th-12th Class: Geometry or Pre-calculus Time: 50 minute class period Context within Course: This lesson would take place after discussing similar triangles and connecting the idea of similar triangles to right angle trigonometry.

What we're doing: Students will determine the height of a flagpole using similar triangles and right angle trigonometry. Students will determine their own procedure, make a prediction, and work in pairs. We will then process the results of the activity as a class.

What students will learn: From this activity, students will make connections between the real world, similar triangles, and right angle trigonometry. We will work with number sense in estimating the height of the pole. Students will engage in problem solving in order to determine what measurements to take. Students will also work on communicating mathematical ideas with one another, practice measuring and using appropriate units, and evaluating their own mathematical work.