Teacher Review (Not based on classroom experience) Reviewer: Aunt Meg, Dec 4 2006 12:02:30:510PM 
Review based on: personal experience 
Appropriate for: introduction to a concept 
Other Comments: This is a beautiful animation. However, I would like to see this tool measure a variety of angles. There is only one example and that measures 2 angles of the same measure. It would also be helpful to give the student some practice measuring their own angles. 
What math does one need to know to use the resource? Understanding of angles and measures of angles 
What hardware expertise does one need to learn to use the resource? None 
What extra things must be done to make it work? None 
How hard was it for you to learn? Very Easy 
Explanation: Just a matter of clicking the "next" button

Ability to meet my goals: Neutral 
Recommended for: Math 3: Geometry in the plane; Math 4: Geometry in the plane; Math 5: Geometry in the plane 
Tool: Using a Protractor, animated demo  Math Open Reference Review