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# Understand and explain President James Garfield's trapezoid proof of the Pythagorean Theorem by algebraically solving his model

teaches
Common Core State Standards
CCSS.Math.Content.8.G.B.6
http://corestandards.org/Math/Content/8/G/B/6

teaches
Common Core State Standards
CCSS.Math.Practice.MP3
http://corestandards.org/Math/Practice/MP3

teaches
Common Core State Standards
CCSS.Math.Practice.MP7
http://corestandards.org/Math/Practice/MP7