There are four Teaching icons at the top of my home page.
Currently the two are under active development: The Main Sequence and the Teaching Projects page.

This page is a placeholder for teaching resources: Books and internet links with brief descriptions.
Topics are related to science, math, and critical thinking.

www.scitoys.com        Physics and electronics labs, excellent how-to documentation, catalog of materials.
www.cut-the-knot.org Mathematics pages with marvellous interactive java applications.