This post was edited by Andrea Cabral on Apr, 2008
1. The images show the decreasing amount of water over time.
2. My measurements were:
1 5972312500
2 4419062500
3 3027187500

3. I can see my students using these tools to see changes in the environment and applying mathematical skills to everyday life. Students seem to always ask about when they will use things learned in class to real life. Here is one response!

4. My lingering question is, "What is being done to prevent the shrinking of the Aral Sea and other areas of the globe that are undergoing similar changes."