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Worksheet
Curated OER

Lisa Simpson and Math

For Students 9th - 12th
In this algebra instructional activity, students ponder life's questions presented in several episodes of The Simpson's. They calculate the square root of 1 million and verify known facts concerning pi. There are 9 questions.
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Lesson Plan
Curated OER

Pi Day

For Teachers 9th
Ninth graders explore the concept of pi in preparation for developing a project for pi day. They examine direct variation, the history of pi, circle circumference and arc length, area and sector area and then consider how these concepts...
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Interactive
National Council of Teachers of Mathematics

Nctm: Illuminations: Circle Area

For Students 3rd - 8th Standards
Explore what the relationship the radius has to the area of a circle. Click the instructions to learn how to use this interactive resource and select"Exploration" for more ideas.