Author
- National Assessment of Educational Progress (Project) 197 results
- Educational Testing Service 191 results
- Mathematics Education Research Group of Australasia 135 results
- Ballator, Nada 96 results
- ERIC Clearinghouse for Science, Mathematics, and Environmental Education 96 results
- Jerry, Laura 96 results
- Education Development Center 92 results
- University of Pittsburgh. Learning Research and Development Center 59 results
- National Center for Research in Vocational Education (U.S.) 54 results
- O'Sullivan, Christine Y. 49 results
- Reese, Clyde M. 48 results
- National Council of Teachers of Mathematics 47 results
- Center for the Assessment of Educational Progress (Educational Testing Service) 46 results
- Herr, Fiona 46 results
- Suydam, Marilyn N. 46 results
- Indiana University, Bloomington. Mathematics Education Development Center 42 results
- International Group for the Psychology of Mathematics Education 42 results
- United States. National Aeronautics and Space Administration 42 results
- Ohio State University. Center for Science and Mathematics Education 41 results
- Educational Resources Information Center (U.S.) 40 results
- Far West Laboratory for Educational Research and Development 40 results
- Ediger, Marlow 39 results
- Unified Science and Mathematics for Elementary Schools, Newton, MA 39 results
- Northwest Regional Educational Laboratory 38 results
- University of California, Los Angeles. Center for Research on Evaluation, Standards, and Student Testing 34 results
- ERIC Clearinghouse on Adult, Career, and Vocational Education 30 results
- National Institute of Education (U.S.) 30 results
- Ohio State University. Vocational Instructional Materials Laboratory 30 results
- Association for Supervision and Curriculum Development 29 results
- Kasten, Margaret L. 29 results
- American Institutes for Research 27 results
- Langley Research Center 27 results
- Wisconsin Center for Education Research 27 results
- Iozzi, Louis A. 26 results
- Society for Research on Educational Effectiveness 26 results
- Wisconsin Univ., Madison. Research and Development Center for Cognitive Learning 26 results
- National Education Association of the United States 25 results
- Michigan State University. Institute for Research on Teaching 24 results
- What Works Clearinghouse (Institute of Education Sciences) 24 results
- Center for New Schools (U.S.) 23 results
- ERIC Clearinghouse on Urban Education 23 results
- Research for Better Schools, inc 23 results
- Sternberg, Robert J. 23 results
- Alberta. Alberta Education 22 results
- Greeno, James G. 22 results
- Rutgers University. Center for Coastal and Environmental Studies 22 results
- Liedtka, Jeanne 21 results
- Association for Educational Communications and Technology 20 results
- Children's Television Workshop 20 results
- McKeon, Timothy 20 results more…