Lesson plan

Understand that the orthocenter of a triangle can exist on, in or outside of a triangle by constructing different types of triangles and their altitudes

teaches Common Core State Standards CCSS.Math.Content.HSG-CO.D.12 http://corestandards.org/Math/Content/HSG/CO/D/12
teaches Common Core State Standards CCSS.Math.Content.HSG-CO.D.13 http://corestandards.org/Math/Content/HSG/CO/D/13
teaches Common Core State Standards CCSS.Math.Practice.MP3 http://corestandards.org/Math/Practice/MP3
teaches Common Core State Standards CCSS.Math.Practice.MP5 http://corestandards.org/Math/Practice/MP5
teaches Common Core State Standards CCSS.Math.Practice.MP8 http://corestandards.org/Math/Practice/MP8

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