Texas Instruments: Cabri Jr. Tangent to a Chord

You know the Inscribed Angle Theorem and you know about tangent lines; now let's consider them together! Learners first explore angle measures when one of the rays of the angle is a tangent to a circle. They then apply their newfound...

Cabri Jr. activity to study the Side-Splitter Theorem. Page numbers come from Prentice Hall Geometry textbook.

This activity uses Cabri Jr. to discover that the perpendicular of a chord passes through the centre of a circle. Microsoft Word documents are attached to support the lesson.

An introduction to Cabri Jr. with step by step instructions to the basics of Cabri Jr.

This activity uses Cabri Jr. to graph a line and show the equation of the line. The equations for oblique, horizontal and vertical lines are explored with emphasis on slope and y-intercept.

This activity uses Cabri Jr. to explore the relationship between inscribed and central angles subtended from the same arc of a circle.

This activity uses Cabri Jr to discover that inscribed angles subtended by the same arc in a circle are congruent.

This activity was developed as an introduction to the Cabri Jr. application on the TI-84 calculator. It investigates some basic properties of triangles. [Requires Adobe Reader.]

In this activity, students recognize the relationship of angles to circles. They study the Inscribed Angle Theorem and its corollaries.

Cabri Jr. activity to study the properties of parallel lines.