Skip To Main Content

Approximate Formulas for Circumference & Area of a Circle

T.i.P.S.

Lightbulb

The student will need to be able to closely determine the circumference and area of circles using models. The students should physically model this relationship using manipulatives such as string, square unit tiles and grid paper.

Example

Use a model to connect the circumference and area of a circle to its formulas.

Circle with blue and yellow sixtenths

Hint

Possible Solutions

Digital Tools

Click on the following links for interactive games.

Resources

Click on the following links for more information.

TEKS

8.8 Expressions, equations, and relationships. The student applies mathematical process standards to develop geometric relationships with volume. The student is expected to:

(C) use models to determine the approximate formulas for the circumference and area of a circle and connect the models to the actual formulas

Feedback

Lighthouse
Click here to submit feedback.