The website appears to be quite adequately maintained. Modification times and the fact that not one obsolete link was found support the fact that this site is obviously well maintained. The Java scripts and animation sequences provided were excellent. I would like to see more examples provided throughout the lessons. It would also be nice if a collaborative white board could possibly be generated to help support students' questions and reflective answers.
Navigational links are complete and adequate.
However, I would like to see the navigational links provided in the columns divided into clearer categories. The homepage includes tools, information about the website, curriculum, on-line support, and other evident categories. The navigational links contained in the columns sometimes can be rather lengthy. Providing general categories with mouse-over specific topic selections would be an enhancement, in my opinion.