This unit of instruction intended for K-8 teachers explores the measures circumference and area of a circle. Learners are given interactive tasks that develop the concept of pi and the rationales for and the applications of the formulas. The unit ends with a practical problem set. Video instruction, hints, and solutions for the exercises are available. Teacher notes are provided.
Keywords:oai:nsdl.org:2200/20140728160753561T,Grade 6,NSDL,Area,Critical thinking,Grade 8,Grade 7,Nonstandard shapes,Quadrilaterals,Visual representation,Representation,Number concepts,Pi,Social Sciences,Analyze and persevere,Circles,Process skills,Number and operations,Upper Elementary,Algebraic representation,Word problems,Grade 5,Area of circles,Model with mathematics,Modeling,Concept formation,Circumference,Middle School,Vocational/Professional Development Education,NSDL_SetSpec_ncs-NSDL-COLLECTION-000-003-112-027,Geometry,Practice Standards,Famous numbers,Visualization,English,Reason quantitatively,History/Policy/Law,Estimation,Systems of measurement,Metric,Mathematics,Reasoning,Plane geometry,Elementary School,Problem solving,Measurement,Education,Nonstandard