Learn about the geometry of circles with Peter Weatherall’s Circle Song.

Construct a circle with a radius of 2 – 4 inches

This activity allows students to explore how to optimize the packaging of circular objects which relates to many real-life scenarios.

We use cylinders and circles around the house all the time like cans, tortillas, and rolls of paper towels, but what secrets do these shapes hold if we unravel them?

A plywood sheet is 45 by 45 inches. What is the approximate diameter of the log the sheet was made from?

Find the center of the circle using only the drafting triangle and pencil

Rank three segments that divide a circle from shortest to longest.

What are the possible values of a?