Education Technology


Angles & Chords in a Circle

Activity Overview

This activity is designed to allow students to gain an understanding of the relationship between the arcs and angles formed by intersecting chords in a circle. It includes an interactive geometry page, some circle problems, and a Euclidean proof.

Before the Activity

See Teacher Notes in Word document. Make the TNS available to students before you begin the activity.

During the Activity

See student worksheet and TI-Nspire (.tns) file.