AUTHOR
National Council of Teachers of Mathematics
26
Time-Life Books
19
National Science Teachers Association
11
Charlesworth, Rosalind
9
Bennett, Albert B.
8
Leedy, Paul D.
8
Nelson, Leonard T.
8
Philippines. Department of Science and Technology. Science Education Institute
8
Ashlock, Robert B. 1930-
7
Lial, Margaret L.
7
VanCleave, Janice Pratt
7
Craig, Gerald Spellman 1893-
6
Haylock, Derek
6
Krulik, Stephen
6
Martin-Gay, K. Elayn 1955-
6
Mock, Valerie E.
6
Muschla, Gary Robert
6
Muschla, Judith A.
6
Bittinger, Marvin L.
5
Blough, Glenn Orlando
5
Jacobson, Willard J.
5
Kennedy, Leonard M.
5
Princeton Review (Firm)
5
Reys, Robert E.
5
Talisayon, Vivien M.
5
Unesco
5
United Nations Educational, Scientific and Cultural Organization
5
University of the Philippines (Diliman). Science Education Center
5
Walters, Martin
5
Asia and the Pacific Programme of Educational Innovation for Development
4
Billstein, Rick
4
Bitter, Gary G.
4
Bluman, Allan G.
4
Brahier, Daniel J.
4
Chua, Queena N. Lee
4
Cockburn, Anne
4
Gonick, Larry
4
Holme, Merilyn
4
Hornsby, E. John
4
Houser, Rick
4
Johnson, Art 1946-
4
Lee, Queena N.
4
Levinson, Ralph 1951-
4
Lind, Karen K.
4
Mader, Sylvia S.
4
Nuffield Foundation
4
Ormrod, Jeanne Ellis
4
Paterno, Maria Elena
4
Patilla, Peter
4
Posamentier, Alfred S.
4
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