This is supplemental material pertaining to the qualitative data presented in the manuscript: Kuo. E., Hull, M. M., Gupta, A., & Elby, A., How Students Blend Conceptual and Formal Mathematical Reasoning in Solving Physics Problems, accepted for publication in Science Education on 08/08/2012.

The following material consists of 4 parts:

A. The context of the study (p. 2) B. The question protocol that students were asked to answer. (pp. 3-4) C. The transcript of Alex’s interview (pp. 5-17) D. The transcript of Pat’s interview (pp. 18-31)