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# Math Curriculum

## Level DUnit: GeometryKey Lesson 7.3.3 Exploring Circumference

Lesson topic: Explore diameter and circumference

## Instructor Materials

• Teacher guide
• Slides
• Practice Problems resource
• CCRS standard: 7.G.4, 7.RP.2, 7.RP.2a
• Learning goal: Comprehend the word “pi” and the symbol to refer to the constant of proportionality between the diameter and circumference of a circle. Create and describe (in writing) graphs that show measurements of circles. Generalize that the relationship between diameter and circumference is proportional and that the constant of proportionality is a little more than 3.
• 7.3 Assessment and Practice Problems

## Related Lessons

### Preparation

If students need additional lessons before this key lesson, use these supplemental lessons.

Used with permission:

1. IM K-5 Math was originally developed by Open Up Resources (OUR) and authored by Illustrative Mathematics® (IM), and is copyrighted 2017-2019 by Open Up Resources. It is licensed under the Creative Commons Attribution 4.0 International License (CC BY 4.0). OUR's K-5 Math Curriculum is available at https://openupresources.org/math-curriculum/.