Abstract
Mathematical knowledge production is increasingly seen as a multimodal activity, involving complex synchronic and diachronic interactions between semiotic systems. This paper documents a diachronic semiotic analysis of interactions that occurred as two secondary teachers engaged in a mathematising task requiring them to construct graphically an antiderivative, using the context of tramping. The roles of a number of different semiotic resources that were prominent at various times are described, along with suggestions on possible cognitive advantages these offered in terms of reduced cognitive load and increased affordances.
Michael O. J. Thomas, Caroline Yoon, Tommy Dreyfus