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

Untitled
Constructing Equilateral Triangles + Activities
Trophy (version 2)
GeoGebra around GeoGebra
Pendulum Snake

Discover Resources

Exploration #3
ineq quiz
KonstanteStreckean2FreienPunkten01
Reflection about two lines
x a la 5 menos 1
proving centroid of triangle divides each median ratio 2:1
Task: Area of Polygon

Discover Topics

Surface
Root
Plane Figures or Shapes
Hypergeometric Distribution
Mode