Protractor Angle Demo

Autore:rcsellers

Just a quick demonstration of why there are two scales on a protractor. Many students don't seem to have a good conceptual grounding in how they should reason through which scale to use.

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Proving Triangles Similar by Dilation

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Derivative Practice-Sections 2.3-2.5
Angle Bisector Construction
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Padilla_B1_Reflections
EM 2014 P1 Q23

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