Below students will construct medians of a triangle and learn some pretty cool concepts in doing so. Below you can find an animated step by step sketch of how to create medians of triangles.
This is a Java Applet created using GeoGebra from - it looks like you don't have Java installed, please go to

Nicholas F. Bennett, Created with GeoGebra

The document is beneath the animated sketch.

By the end of the lesson, students should understand
  • How draw the medians and centroid for any triangle.
  • Understand the relationship among the area of the triangles created by the median segments
  • Understand the relationship between the centroid and median of a triangle with respect to length ratios.