Protractor Angle Demo

Autor: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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apec
Forming Similar Triangles
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MC #2

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Tessellation Step 4
קשר בין גרף הפונקציה והנגזרת 1
Rectangle perimeter
ΠΙΘΑΝΟΤΗΤΕΣ
Polygons with angles

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Rectángulo
Gráfico de Barras
Adición
Números Naturales
Parábola