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*Marx, R. W., Blumenfeld, P.C., Krajcik, J, Blunk, M., Crawford, B., Kelly B., and Meyer, K. (1994) Enacting Project-based Science: Experiences of four middle grade teachers. Elementary School Journal, 94(5), 499-516. *Clermont, C., Borko, H. and Krajcik, J. S. (1994) A comparative study of the pedagogical content knowledge of experienced and novice chemical demonstrators. Journal of Research in Science Teaching, 31(4), 419-441. *Nakhleh, M. B., & Krajcik, J. S. (1993). A protocol analysis of the influence of technology on students actions, verbal commentary, and thought process during the performance of acid-base titrations. Journal of Research in Science Teaching, 30(9), 1149-1168. *Clermont, C. P., Krajcik, J. S., & Borko, H. (1993). The influence of an intensive workshop on pedagogical content knowledge growth among novice chemical demonstrators. Journal of Research in Science Teaching, 30(1), 21 - 45. + Layman, J.W. & Krajcik, J.S. (1992). The microcomputer and practical work in science laboratories. In David Layton (Ed.), Innovations in Science and Technology Education, Vol IV, UNESCO, Paris. *Blumenfeld, P., Soloway, E., Marx, R., Krajcik, J. S., Guzdial, M. & Palincsar, A. (1991). Motivating project-based learning. Educational Psychologist, 26(3 & 4), 369 - 398. *Starr M. & Krajcik, J. (1990). Concept maps as a heuristic for science curriculum development: Toward improvement in process and product. Journal of Research in Science Teaching, 27(9), 987-100. *Krajcik, J. S., & Penick, J. E. (1989). Evaluation of a model science teacher education program. Journal of Research in Science Teaching, 26(9), 795-810. *Yager, R. E. & Krajcik, J. S. (1989). Success of students in a college physics courses with and without experiencing a high school course. Journal of Research in Science Teaching, 26(7), 599- 608. *Krajcik, J. S., Simmons, P. S., & Lunetta, V. N. (1988). A research strategy for the dynamic study of students’ concepts and problem solving strategies using science software. Journal of Research in Science Teaching, 25(2), 147-155. *Yager, R. E., Snider, B. & Krajcik, J. S. (1988). Relative success in college chemistry for students who experienced a high school course in chemistry and those who had not. Journal of Research in Science Teaching, 25(5), 387-396. *Krajcik, J. S., & Berg, C. (1987). Exemplary software in the science classroom. School Science and Mathematics, Special Issue-Technology, 87(6), 494-500. *Krajcik, J. S., & Yager, R. E. (1987). High school chemistry as preparation for college chemistry. Journal of Chemical Education, 64(5), 443-435. *Krajcik, J. S., & Haney, R. (1987). Reasoning patterns necessary for success in high school chemistry. School Science and Mathematics, 87(1), 25-32. *Krajcik, J. S., Simmons, P. E., & Lunetta, V. N. (1986). Research on computers in science learning. Journal of Research in Science Teaching, 23(5), 465-470.

#### Book, handbook, and monograph chapters and commissioned papers: (* designates refereed chapters; + designates solicited chapters)

*+ Novak, A.M., & Krajcik, J.S. (2019). A Case Study of Project-Based Learning of Middle School Students Exploring Water Quality. In Moallem, Hung, Dabbagh (Eds), Wiley Handbook of Problem-Based Learning. *+Berland, L. K., McNeill, K. L., Pelletier, P. & Krajcik, J. (2017). Engaging in scientific argumentation. In Schwarz, C., Passmore, C., Reiser, B.J. (Eds.). Helping students make sense of the world using next generation science and engineering practices. (pp. 229-258) Arlington, VA: National Science Teachers Association Press. *+ Mayer, K., Krajcik, J., Core Ideas PS1: Matter and Its Interactions (2016). In Duncan, R., Krajcik, J., Ravit, A. Editors, (authorship is alphabetical), Disciplinary Core Ideas: Reshaping Teaching and Learning. Arlington, VA: National Science Teachers Association Press.