Lesson plan

Make observations about parallelograms by examining their properties

teaches Common Core State Standards CCSS.Math.Content.HSG-CO.C.11 http://corestandards.org/Math/Content/HSG/CO/C/11

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Big Ideas: Parallelograms have many properties beyond the definition of two pairs of parallel sides. In this lesson students will make observations about common properties found by looking at several sets of parallelograms. Vocabulary: congruence, opposite sides, parallel, parallelogram Special Materials: Parallelograms for students to cut out, measure, etc. Scissors Rulers Protractors Graph Paper (optional)