Peter Weatherall
Learn about the geometry of circles with Peter Weatherall’s Circle Song.
youcubed (Stanford University)
Construct a circle with a radius of 2 – 4 inches
youcubed (Stanford University)
This activity allows students to explore how to optimize the packaging of circular objects which relates to many real-life scenarios.
youcubed (Stanford University)
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?
National Council of Teachers of Mathematics
A plywood sheet is 45 by 45 inches. What is the approximate diameter of the log the sheet was made from?
National Council of Teachers of Mathematics
Find the center of the circle using only the drafting triangle and pencil
National Council of Teachers of Mathematics
Rank three segments that divide a circle from shortest to longest.
National Council of Teachers of Mathematics
What are the possible values of a?
