Math Games

Grade 7 - Shape and Space

Standard 7.SS.1 - Calculate the circumference, area, radius and diameter of a circle in a word problem.

Included Skills:

Demonstrate an understanding of circles by:
• describing the relationships among radius, diameter and circumference
• relating circumference to pi
• determining the sum of the central angles
• constructing circles with a given radius or diameter
• solving problems involving the radii, diameters and circumferences of circles.

• Achievement Indicators:
- 7SS1.1 Illustrate and explain that the diameter is twice the radius in a given circle.
- 7SS1.2 Draw a circle with a given radius or diameter, with and without a compass.
- 7SS1.3 Illustrate and explain that the circumference is approximately three times the diameter in a given circle.
- 7SS1.4 Explain that, for all circles, pi is the ratio of the circumference to the diameter (C/d) and its value is approximately 3.14.
- 7SS1.5 Solve a given contextual problem involving circles.
- 7SS1.6 Explain, using an illustration, that the sum of the central angles of a circle is 360°.