Shodor.org\Interactivate is a Great Resource for Math and Science

http://www.shodor.org/interactivate/ is a great resource for Math and Science. It is a java based Math & Science courseware that includes lessons, discussions and standards for the teachers and activities, tools and a dictionary for the students. Shodor contains over 70 lessons based on the activities for grades 3-5, 6-8 and 9-12. The discussions will help the students understand math and science concepts. There are over 100 interactive activities that allow students to explore the many areas of math and science. The dictionary lists the terms the students encounter in the website. The tools are a subset of the activities index page and can be used as stand alone applications in analyzing numbers and data.

Polar Coordinates Activity