Division Technique: Hands-On Activity #2 (small image)
Construct and Duplicate Centroid ---- Totally Tessellated @ http://library.advanced.org/16661/
Instructions: Print this page and then close this window. On each polygon, either connect the vertices to the centroid or draw lines from the vertices through the centroid to the other side. After you are done, color the resulting tiling any way you want! (You may or may not want to keep the original tessellation.)