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The Why Behind the Worksheet:
This no-prep, hands-on introductory activity has students make their own discovery about the value and meaning of pi. Students will measure various circular objects (any circular object will do!) to find the circumference and diameter, and then compute that ratio.
Computing the ratio of their large and small circles alike should lead to the "aha!" that circumference divided by the diameter equals pi, regardless of the size of the circle selected.
Works Best For:
This is great for the beginning of a unit on exploring the properties of circles and the concept of pi. This also helps build better conceptual understanding of why the various circle formulas work they way they do.
Supplies You'll Need:
The only supplies needed are any circular objects from around the classroom, and a tape measure for each small group.
Language and math supports are included to help students with developing math vocabulary and English language fluency.
Connections to Other Learning: