Theorems About Special Parallelograms (Ault)

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This lesson focuses on G-CO.C.11: developing properties of rectangles, using those properties, and proving theorems about special parallelograms (rectangles). Students explore concepts of parallelograms and prove theorems in groups.  Core Action 3 is strongly exhibited in this lesson. 

This video was annotated using this version of the Instructional Practice Guide (IPG). A current version of the IPG is available here.


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