Exploring the Centers of a Triangle and Euler's Line using Nspire App in the iPad

Join us to explore the centers of a Triangle using the combined powere of the iPad and the Nspire App. We will find the points of concurrence for the angle bisectors, altitudes, perpendicular bisectors, and medians; discover which are always collinear--Euler's Line--and then explore under what conditions they are ALL four collinear and concurrent.

8 to 10

Building Mathematical Knowledge for Teaching