1. Abrahamson, D. (2004). Keeping meaning in proportion: The multiplication table as a case of pedagogical bridging tools. Unpublished doctoral dissertation. Northwestern University, Evanston, IL.
2. Abrahamson, D. (2006a) The shape of things to come: The computational pictograph as a bridge from combinatorial space to outcome distribution. International Journal of Computers for Mathematical Learning, 11(1), 137–146.
3. Abrahamson, D. (2006b). Bottom-up stats: Toward an agent-based “unified” probability and statistics. In D. Abrahamson (Org.), U. Wilensky (Chair), & M. Eisenberg (Discussant), Small steps for agents... giant steps for students?: Learning with agent-based models. Paper presented at the Symposium conducted at the annual meeting of the American Educational Research Association, San Francisco, CA.
4. Abrahamson, D. (2006c). Mathematical representations as conceptual composites: Implications for design. In S. Alatorre, J. L. Cortina, M. Sáiz, & A. Méndez (Eds.), Proceedings of the Twenty Eighth Annual Meeting of the North American Chapter of the International Group for the Psychology of Mathematics Education (Vol. 2, pp. 464–466). Universidad Pedagógica Nacional.
5. Abrahamson, D., Berland, M. W., Shapiro, R. B., Unterman, J. W., & Wilensky, U. J. (2006). Leveraging epistemological diversity through computer-based argumentation in the domain of probability. For the Learning of Mathematics, 26(3), 39–45.