7G22-B Matching: Understanding Area of a Circle

by K-8 Math Sense

Price: 200 points or $2 USD

Subjects: math,equivalentExpressions,midSchoolGeometry,midSchoolGeometryArea

Grades: 7,8,9

Description: Help students in middle school match equivalent models and representations. These challenging cards provide practice with areas of circles, ovals (two semicircles connected by a rectangle), and with the space between a circle and a square. These are best used after a discussion of how to find perimeter of each type of figure. The cards show models, expressions, and simplified expressions (or values). Students get LOTS of practice as they select two of six cards that represent the same value. Among the six cards shown, there could be a model matching an expression, a model matching the final value (which encourages mental math), or an expression matching a simplified expression. For related printable cards with instructions for four engaging games, search code 7G22 in the Printable section of this store. 7G22 stands for the grade level, domain, cluster, and goal. This is part of the "Playing with Pi" games bundles.