Deriving a Formula for the Area of a Circle - never thought to use colored paper - it shows it better

Deriving a Formula for the Area of a Circle - never thought to use colored paper - it shows it better

Math-tastic Mary: Circumference and Area of Circles #etlobestimages #etlobest

Math-tastic Mary: Circumference and Area of Circles #etlobestimages #etlobest

Area of a circle with a hula hoop.  Use a tape measure.  Allow student to figure out the circumference on their own.

Area of a circle with a hula hoop. Use a tape measure. Allow student to figure out the circumference on their own.

7th grade area of a circle worksheet | 7th Grade Standard Met: Radius and Diameter Used In Circles

7th grade area of a circle worksheet | 7th Grade Standard Met: Radius and Diameter Used In Circles

Use graph paper to demonstrate the ratio of PI for both Circumference and Area. Refer to the demonstration of Circumference performed for you in the last Math Antics Video, What is PI? Use that demonstration to come up with your own for the ratio of PI when calculating the Area of a circle.

Use graph paper to demonstrate the ratio of PI for both Circumference and Area. Refer to the demonstration of Circumference performed for you in the last Math Antics Video, What is PI? Use that demonstration to come up with your own for the ratio of PI when calculating the Area of a circle.

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