Classroom Freebies

Explaining Pi to Upper Elementary Students

Many lessons expect upper elementary students to measure the diameter and circumference of a circle and discover pi.  I find that upper elementary students do not measure accurately enough to do this.  I have reversed the order of this lesson.

I use the page shown above to introduce pi.  Next, I give them a variety of round plastic lids to measure to the nearest millimeter.  I have them record their measurements and see how accurately they measured based on the ratio.

To download Pie for Pi Day, please visit this post at Artistry of Education.

Artistry of Education