Part+V+-+References

Beckmann, S. (2011). // Mathematics for elementary teachers with activity manual //. (3rd ed.). Boston: Pearson Education, inc.

// Circumference of a circle lesson //. (2009, December 28). Retrieved from http://www.oceanic.name/mathematics/tiki-index.php?page=Circumference of a Circle lesson

Cox, K. (2008). 3-5 Mathematics Georgia Performance Standards. Retrieved from [|https://www.georgiastandards.org/Standards/Georgia%20Performance%20Standards/Math_3-5_9-11-08_REVISED_4-27-10[2.pdf]]

Johnson, D. (n.d.). // Discovering pi //. Northeast Wisconsin Technical College, Wisconsin, Available from Wisconsin Online Resource Center. Retrieved from http://mercury.educ.kent.edu/database/eureka/documents/DiscoveringPiCOPs.pdf

(2000). // Principles and standards for school mathematics //. Reston, Va: The National Council of Teachers of Mathematics, Inc.