At the latest PME-NA (35), a working group met on the topic of negative numbers. Groups presented on their research within one or more categories related to negative integers: role of contexts, models, historical development, algebra, student understanding, and teacher knowledge (Lamb et al., 2013). We began a productive discussion on issues related to each of these categories and would like to broaden the discussion with the inclusion of members from the international community. Further we aim to develop research collaborations around mutual areas of interest.
Published in Liljedahl, P., Nicol, C., Oesterle, S., & Allan, D. (Eds.), 2014, Proceedings of the Joint Meeting of PME 38 and PME-NA 36, Vol. 1, p. 240. Vancouver, Canada: PME.