Circle
A circle is a closed curve in which all points are equidistant from the center. The distance from the center to any point on the circle is called the radius. The longest distance across a circle, passing through the center, is called the diameter. The formula for the circumference of a circle is C = 2πr, where C is the circumference and r is the radius. The formula for the area of a circle is A = πr2, where A is the area and r is the radius.
[Circle] Related Worksheets and Study Guides:
.◂Math Worksheets and Study Guides Second Grade. Fractions Greater Than or Less Than 1/2
Study Guide
Fractions Greater Than or Less Than 1/2 
Worksheet/Answer key
Fractions Greater Than or Less Than 1/2 Worksheet/Answer key
Fractions Greater Than or Less Than 1/2 Worksheet/Answer key
Fractions Greater Than or Less Than 1/2 Worksheet/Answer key
Fractions and Decimals Worksheet/Answer key
Fractions and Decimals Vocabulary/Answer key
Fractions Greater Than or Less Than 1/2
Worksheet/Answer keyWorksheet/Answer keyWorksheet/Answer keyWorksheet/Answer keyWorksheet/Answer keyVocabulary/Answer keyCreate And Print more Fractions worksheets with Comparing Fractions, Equivalent Fractions, and Simplifying Fractions
The resources above cover the following skills:
Number and Operations (NCTM)
Understand numbers, ways of representing numbers, relationships among numbers, and number systems.
Understand and represent commonly used fractions, such as 1/4, 1/3, and 1/2.