Protractor Angle Demo

Autor:Caitlyn Zitka, 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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What Do You See? (2)
挂谷问题——三尖瓣形
Quadrant Illustrator
Odd Function Explorer
繪畫垂直線

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water reflecting through raindrop
Rory's Geogebra 2
start, create right isosceles triangle
Modul 2_Muhammad Arfiyadi Ahsan_SDN Belitung Utara 1_kerucut
circle thereom

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Oberfläche
Kreis
Umkreis
Hypergeometrische Verteilung
Fraktale Geometrie