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| | Patricia Heller |
 | | Heller, P. and Finley, F. Variable uses of alternative conceptions: A case study in current electricity, Journal of Research in Science Teaching, 29(3), 259-275 Heller, P., Keith, R. and Anderson, S. Teaching problem solving through cooperative grouping. |
 | | Heller, P., Post, T., Behr, M., and Lesh, R. Qualitative and numerical reasoning about fractions and rates by seventh- and eighth-grade students, Journal for Research in Mathematics Education, 21(5): 388-402. |
 | | Heller, P., Ahlgren, A., Post, T., Behr, M. and Lesh, R. Proportional reasoning: The effect of two context variables, rate type and problem setting, Journal of Research in Science Teaching, 26(3): 205-220. |
| groups.physics.umn.edu /physed/People/pat.html (651 words) |
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