Abstract
Two complementary processes involved in mathematical modelling are (1) mathematising a realistic situation, and (2) applying a mathematical technique to a given realistic situation. We present and analyse work from four undergraduate students and two secondary school teachers who engaged in both processes during a mathematical modelling task that required them to find the antiderivative of a function presented graphically. When determining the height of the antiderivative, they mathematised the situation to develop an elementary mathematical method, and attempted to apply some ideas about definite integration that they had previously learned in class. In the end, however, the participants favoured their more elementary mathematised knowledge over the sophisticated knowledge they tried to apply.
Caroline Yoon, Tommy Dreyfus, Michael O. J. Thomas