Protractor Angle Demo

Author: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

Function Art 3D - Flower
Function art 3D - waiting shed (v2)
Absolute Value Functions f(x)=a |x - h| + k
What Do You See? (2)
Function art 3D - waiting shed

Discover Resources

Animation 13
Measure Interior Angles
day 78
Graphs of Linear Equations in Two Unknowns
Sketch solution curves with slope fields

Discover Topics

Dilation
Orthocenter
Percentages
Curve Sketching
Sine