Protractor Angle Demo

Author: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.

New Resources

bewijs stelling van Pythagoras
函數的奇偶性
גיליון אלקטרוני להעלאת נתוני בעיה ויצירת גרף בהתאם
函數的單調性
Area Between Two Curves

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