Students were given circular objects and given yarn. The
students then had to take yarn and place it around the round edge of a circular
object and cut it so that is it exactly the length of the outside edge of the
circle. Then the students had to find the diameter of the round object with a
ruler. Once finding the diameter the students take their yarn and measure off
the diameter and cut the yarn into however many “diameters” they can. If done
properly all students will get “three and a little” (pi = 3.14) to show why we
use pi for calculations with circles.
I enjoyed doing this activity with my students. It helps pi
make a bit more sense and helps them remember what number pi is.
Have you done an activity similar to this?
~Manda
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