The site is designed to provide "tools" for use in the classrrom when teaching various levels of math. In review, I found that the site could be helpful if it were to be integrated into the course seamlessly. The site was easy to use and simple to navigate. The classifications would making finding a tool easy for the instructor or student.
Worked, well. This is a no-frills website that has some very basic graphics. The site is not flashy or really catch your eye, but it it does provide a different view of various problems that would be presented in math courses.
Time spent reviewing site:
I spend about 15 minutes reviewing this site. I reviewed several sites prior to commenting, not knowing how I would determine which is better than the other. I liked this site because no explaination was necessary to understand the concept.