Protractor Angle Demo

Auteur :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.

Nouvelles ressources

Congruent Figures
Congruent Sides & Angles in △s: Exploration
Rovnoběžnost rovin
Right Triangle Inscribed in a Semicircle
Linear Equation Graphs: Thin Slice

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Projectile Motion
Problem 73
Max box problem
Challenge 1b. Reflection in the line x = 2
鋪紙條找公倍數和 LCM

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Angles
Nombres
Fonctions Polynomiales
Arbres de Probabilité
Triangles