Teaching mathematics with intelligent support in natural language. Tertiary education students working with parametrized modelling activities

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Abstract
This article reports the outcomes of a study that seeks to investigate the role of feedback, by way of an intelligent support system in natural language, in parametrized modelling activities carried out by a group of tertiary education students. With such a system, it is possible to simultaneously display on a computer screen a dialogue window and a window with a microworld that are dynamically hot-linked to each other. While users work in the microworld, they can enter into dialogue with the system in natural language. The article discusses the case of one pair of participating students. In their case, the feedback provided by the intelligent support and by the microworld at key moments of the modelling activities, such as understanding the phenomenon, building the model or predicting, was crucial to their ability to build a spreadsheet model and, consequently, to their understanding of the long-term behaviour of the phenomenon being modelled.