Learning mathematics by reconciling complementary perceptual constructions of a common display: The case of an innovative design for complex numbers Shadmehr, M.

Not too slippery a slope: Fostering student grounding of the mathematics of slope in perceptions of steepness Thacker, I.

Toward didactical contracts for mathematics learning with digital media: coordinating pedagogical design and classroom practices. Negrete, A.G.

Negotiating mathematical visualizations in classroom group work: The case of a digital design for proportion Lee, R.G.

Mathematics learning as perceptual reconstruction: the role of semiotic breakdown in collaborative problem solving Dutton, E.

Lost in translation: algebra tiles and equations—an interview-based critical evaluation of a would-be instructional support Kavanaugh, H.

So what if I’m a girl?: Changing the female attitude towards mathematics through interpretive discussion. Alvarez, J.