Roxana Grigoras
Broschiertes Buch

On Assumptions and Hypotheses in Mathematising by Tasks without Numbers

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When seen as problem solvers of apparently non-mathematical tasks, i.e. tasks without numbers, students mathematise, thus translate text into mathematics. While doing that within groups, they discuss and controvert, by expressing statements in form of assumptions and hypotheses. Beginner and experienced modellers show different working behaviours when investigating how students¿ perform three main modelling tasks. Epistemic actions within the mathematical modelling cycle, with RBC and SDDS models on a micro-level provide the theoretical framework based on which actions of students are empiric...