Students will create an APPVAR entitled "CTR1." They will create a triangle, find the midpoints of the sides, and then draw the three medians. Using Cabri™ Jr. to drag various parts of a triangle they will draw conclusions regarding concurrence and area from the figure. The corresponding worksheet can be tailored to fit a variety of class formats.
Before the Activity
The student should know how to draw a triangle, find a midpoint, calculate an area, and draw a segment using the Cabri Jr. App.