Circumference And Area Formulas Math Games

3 games

In this series of games, your students will learn the formulas for the area and circumference of a circle and use them to solve problems. The Circumference And Area Formulas learning objective — based on CCSS and state standards — delivers improved student engagement and academic performance in your classroom, as demonstrated by research. This learning objective directly references 7.G.B.4 as written in the common core national math standards.

Scroll down for a preview of this learning objective’s games and the concepts.

Concepts Covered

A radius of a circle is the measure from the center point of the circle to the edge. All radii in the same circle are equivalent. A diameter is a line that extends from edge to edge through the center point of a circle. All diameters in the same circle are equivalent. The diameter is twice the radius. Circumference of a circle is the distance around a circle. Pi or π is the ratio of a circle’s circumference to its diameter. The area of a circle can be found using the formula A = πr2, where r is the radius, and π is estimated as 3.14 or 22/7.

The circumference can be found using the formula C = d π. If given only the radius, then the circumference can be found using C = 2 π r. Explain the relationship between the circumference and area. Given the circumference of a circle, determine the radius or diameter of the circle. After multiplying an original measurement of a circle (diameter, radius, circumference, or area) by a factor to create a new circle, describe how the new circle compares to the original circle.

A preview of each game in the learning objective is found below.

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