The Clearinghouse is a central source for free information about K-12 math and science materials, with on-line, CD-ROM, and print products and services. The target audience is K-12 educators.

The Eisenhower National Clearinghouse
Ohio State University
1929 Kenny Road
Columbus, OH 43210-1079
Tel: (800) 621-5785
Fax: (614) 292-2066
Web: www.enc.org