7th grade math students just completed a geometry project on pyramids. To investigate surface area and volume, each group chose a pyramid somewhere in the world to research. They located the dimensions, including base, height, and slant height to calculate relative volume and surface area of actual pyramids, including ancient pyramids of Egypt and Mexico as well as modern pyramids such as a new hotel in North Korea and the Louvre in Paris.

To continue the comparison, students then calculated and built scale models on a scale of 1:1000 and shared them with the class.

geometry pyramids

 

The results were surprising. We realized that reading the numbers and looking at the slides were deceiving. That building the scale models and lining them up together really gave a sense of height and width that is impossible to see in a picture.

–Kris Bennett, Middle School Math Teacher