**Eisenhower National Clearinghouse for Math and
Science Teachers** (Ohio State University)
`http://www.enc.org/`
This umbrella site is a gold mine for
mathematics and math education.
You can read newsletters,
specialized catalogs, and
topical publications, or connect to other
education sites.
An *Online Documents* service
allows you to find articles on curriculum issues in mathematics
that are available in an electronic format.

A *Lessons and Activities* page
includes classroom activities with projects and
supporting materials.
When we last checked, the page contained
sixteen different activities; the
following three titles give a flavor for
the kind of things that can be found here.

- The CHANCE Database contains materials to help teach a CHANCE probability course or a standard introductory probability or statistics course.
- The
*Good News Bears Stock Market Project*is an interdisciplinary project designed for middle school students. It is an interactive stock market competition between classmates using the New York Stock Exchange and NASDAQ. - The
*Spanky Fractal Database*is a collection of fractal images, documents, and software available for free distribution. It links to several other fractal sites on the Internet.

**Mathematics Forum** (Swarthmore College)

`http://forum.swarthmore.edu/`

This is a new site, extending the well-known
**Geometry Forum**, which was developed several
years ago at Swarthmore. The site is intended to create
an on-line mathematics community; it hosts discussion groups
on teaching mathematics, provides useful information and interesting
math problems, and has a search engine for mathematics resources.

One of the useful features at this site is **Ask Dr.
Math**.
K-12 students can get answers to their mathematical questions
by linking to
the *Dr. Math Archive*,
which is a database of previously and frequently asked
questions in mathematics.
Students can also send a message directly
to *Dr. Math* (actually a team of mathematics students
at Swarthmore) using the email address
`dr.math@forum.swarthmore.edu`.
Replies are usually sent within 24 hours.

**NCTM Standards** (National Council of Teachers of
Mathematics)

`http://www.enc.org/online/NCTM/280dtoc1.html`

A complete copy of the NCTM *Curriculum and Evaluation Standards
for School Mathematics* can be found here,
which includes a standard for discrete mathematics in grades 9-12.
This excellent
resource includes a discussion of each standard at its designated
grade level groups: K-4, 5-8, or 9-12.
These discussions contain a wealth of ideas and materials
that could be adapted for use in the classroom.
This is a great starting place for
anyone who is interested in mathematics education.