Contents: J.G. Greeno, M. Gardner, Foreword. Part I: View from the Disciplines. L.C. McDermott, A View from Physics. J.D. Herron, Research in Chemical Education: Results and Directions. J. Stewart, Biology Education and Research: A View From the Field. J. Lochhead, Toward a Scientific Practice of Mathematics Education. Part II: Instructional Design. F. Reif, Transcending Prevailing Approaches to Science Education. A.L. Brown, J.C. Campione, Interactive Learning Environments and the Teaching of Science and Mathematics. W.J. Clancey, K. Joerger, A Practical Authoring Shell for Apprenticeship Learning. J.H. Larkin, C. Scheftic, R.W. Chabay, An Applied Science of Instructional Design. Part III: Social Contexts of Learning Science. D. Newman, Using Social Context for Science Teaching. P. Eckert, Adolescent Social Categories, Information and Science Learning. G.B. Saxe, The Interplay Between Children's Learning in School and Out-of-School Contexts. V.N. Lunetta, Cooperative Learning in Science, Mathematics, and Computer Problem-Solving. J. Lave, Views of the Classroom: Implications for Math and Science Learning Research. Part IV: Introduction: The Impact of Technology. D.L. Goodstein, The Mechanical Universe and Beyond: Physics Teaching Enters the 20th Century. A.H. Schoenfeld, GRAPHER: A Case Study in Educational Technology, Research, and Development. A.A. diSessa, Social Niches for Future Software. M.C. Linn, Summary: Establishing a Science and Engineering of Science Education.