Education Technology

The Tangent Ratio

Published on 06/09/2008

Activity Overview

In this activity students explore the tangent ratio. Students construct a right triangle using perpendicular lines, and a line that forms the hypotenuse of the triangle. When students construct the hypotenuse line it is very important that the second point that forms the line is not on the perpendicular line. When done correctly, moving point C will produce similar triangles.

Before the Activity

Students should have access to either the TI-83 or TI-84 family of calculators.

During the Activity

Students explore the tangent ratio. Students construct a right triangle using perpendicular lines, and a line that forms the hypotenuse of the triangle.

After the Activity

Review student answers:

  • As a class, discuss questions that appeared to be more challenging
  • Re-teach concepts as necessary