eBook
Open Oregon Educational Resources

Forest Measurements: An Applied Approach

For Students 9th - Higher Ed Standards
Geometry—it's not just for the math classroom! Learners explore the field of forestry through a mathematical lens. An instructional resource explains how forest workers collect data about trees such as height, diameter, and age...
eBook
Math Planet

Math Planet: Calculating the Circumference of a Circle

For Students 6th - 9th Standards
Gain an understanding of how to find the diameter of a circle by viewing an example and a video lesson. [1:01]
eBook
AAA Math

Aaa Math: Circumference of a Circle

For Students 9th - 10th Standards
Calculating the circumference or perimeter of a circle has gotten easier with this formula and practice for finding the circumference.
eBook
CK-12 Foundation

Ck 12: Interactive Geometry: 8.2 Area and Circumference of Circles

For Students 9th - 10th Standards
A deep dive into the area and circumference of circles.
eBook
CK-12 Foundation

Ck 12: Interactive Geometry: 1.8 Circles

For Students 9th - 10th
Understand circles and their measurement applications.

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