Vol. 9 No. 1: (September, 2014)

Articles

• Mathematics teachers’ ideas about mathematical models: A diverse landscape

  Alfredo Bautista, Michelle H. Wilkerson-Jerde, Roger G. Tobin, Bárbara M. Brizuela

  1-28

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• The width of a proof

  Gila Hanna

  29-39

  • PDF

• (Dis)orientation and spatial sense: Topological thinking in the middle grades

  Elizabeth de Freitas, MaryJean McCarthy

  41-51

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