Adam und der Rechenriese - You can get a playable demo of the german MSDOS-program for 1st grade mathematics on this page. There are some videos of this program on this page too.
Doug Ingram's Astronomical Teaching Resources - describes some of the Astronomy courses taught at the University of Washington and provides links to the resources used in teaching the classes, such as readings, homeworks, labs, exams, syllabi, study guides, etc. Most files are either linked both as LaTeX and Postscript or as just ASCII.
Eisenhower National Clearinghouse - Eisenhower National Clearinghouse (ENC) is to provide K-12 teachers with a central source of information on mathematics and science curriculum materials and to encourage the adoption and use of such materials in order to support national goals to improve teaching and learning in mathematics and science.
Mathematics Archives - Contains software and other materials which can be used in the teaching of mathematics at the community college, college and university levels. Also contains links to other similar sites.
Minority Science & Engineering Program - The MSEP provides academic support for minorities entering science and engineering at the University of Washington. Included at this site are contact names, program description and sample worksheets and tests from our Academic Excellence Workshops.
The Hub - The Hub is an Internetworked resource for mathematics and science education funded by the Eisenhower Regional Consortia and operated by TERC on behalf of the Regional Alliance for Mathematics and Science Education Reform.