by the National Council of Teachers of Mathematics ; Kenneth E. Vos, editor ; for the Eisenhower National Clearinghouse for Mathematics and Science Education
Date
1996
Series
Monograph (Eisenhower National Clearinghouse for Mathematics and Science Education) ; #1
prepared by Education Data Systems Implementation Project, Council of Chief State School Officers ; [project director and primary author, Barbara S. Clements]
Date
[1994]
Series
Contractor report (National Center for Education Statistics)