Using a Protractor

We use protractors to measure angles.

Here is a video tutorial from the Khan Academy on how to use a protractor:
http://www.khanacademy.org/math/geometry/angles/v/measuring-angles?playlist=Geometry

Here is an interactive activity where you can get some practice using a protractor:
http://www.khanacademy.org/math/geometry/segments-and-angles/e/measuring_angles?exid=measuring_angles


Don't forget there are also virtual protractors available at the Virtual Manipulatives websites that were mentioned in an earlier post:

http://rvroom208.blogspot.ca/search/label/math%20manipulatives