Lesson Plan
Better Lesson: Exploring Circumference Lesson Plan
Better Lesson

Better Lesson: Exploring Circumference

For Teachers 6th - 7th Standards
What is pi, anyway? Students explore the relationship between circumference and diameter by measuring a variety of circles and use it to derive the formula for circumference.
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Graphic
Math2: Circles Graphic
Math2

Math2: Circles

For Students 9th - 10th Standards
This site has many useful formulas and examples relating to circles, including related definitions, circumference of a circle, area of a circle, length of a circular arc, area of a circular sector, equation of a circle in cartesian...
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Unit Plan
Ck 12: Geometry: Area of a Circle Unit Plan
CK-12 Foundation

Ck 12: Geometry: Area of a Circle

For Students 9th - 10th
[Free Registration/Login may be required to access all resource tools.] In this lesson students calculate the area of circles and the area of sectors of circles by using given information and formulas. Students examine guided notes,...
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Interactive
Calculator Soup: Sphere Calculator Interactive
Calculator Soup

Calculator Soup: Sphere Calculator

For Students 9th - 10th
This online calculator will calculate the 3 unknown values of a sphere given any 1 known variable including radius r, surface area A, volume V and circumference C. It will also give the answers for volume, surface area, and circumference...
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Interactive
Calculator Soup: Hemisphere Calculator Interactive
Calculator Soup

Calculator Soup: Hemisphere Calculator

For Students 9th - 10th
This online calculator will calculate the various properties of a hemisphere given any 1 known variable. It also calculates the variables in terms of PI.
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Interactive
Calculator Soup: Circular Cylinder Calculator Interactive
Calculator Soup

Calculator Soup: Circular Cylinder Calculator

For Students 9th - 10th
This online calculator will calculate the various properties of a cylinder given 2 known values. It will also calculate those properties in terms of PI.
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Whiteboard
Class Flow: Volume of Cylinders Whiteboard
ClassFlow

Class Flow: Volume of Cylinders

For Teachers 6th - 8th
[Free Registration/Login Required] This flipchart guides the students through the process of determining the volume of a cylinder. Students learn to transform formulas in order to find the missing elements.
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Graphic
Circle Picture Graphic
Curated OER

Circle Picture

For Students 9th - 10th
This site provides definitions for different parts of a circle, pictures to more clearly represent formulas involving circles. Some of the formulas discussed include: area of a circle, area of a sector of a cirles, circumference, length...
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Lesson Plan
Smile: The Area of a Circle Lesson Plan
Science and Mathematics Initiative for Learning Enhancement (SMILE)

Smile: The Area of a Circle

For Teachers 6th - 8th Standards
An investigative approach is given to exploring finding the area of a circle.
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