Pentagon to Quadrilateral Puzzle

Puzzles involving cutting shapes and forming them into different shapes helps reinforce the idea that area do not necessarily change with change in shape. It is also a good activity for developing

A problem solving lesson about triangles and circles

This short lesson was inspired by one of the problems from the blog Five  Triangles Mathematics. The author challenges the reader to construct a circle using only a compass and

If One World Trade Center is a prism and not an antiprism, would it be less in volume?

One World Trade Center, more simply known as 1 WTC and previously known as the Freedom Tower, is the lead building of the new World Trade Center complex in Lower Manhattan, New York City. The supertall skyscraper is