RESEARCH PAPER
Challenges in geometric modelling–A comparison of students’ mathematization with real objects, photos, and 3D models
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Goethe University Frankfurt, Frankfurt, GERMANY
Publication date: 2024-03-03
EURASIA J. Math., Sci Tech. Ed 2024;20(3):em2414
KEYWORDS
ABSTRACT
Mathematical modelling aims at contributing to the involvement of reality in mathematics
education. As an example, geometric modelling can be implemented by the use of real objects in
modelling tasks. Still, (geometric) modelling tasks can be a challenge for students, especially in
the transfer from reality to mathematics, which is referred to as mathematization. Since the
representation of a real object in tasks might differ, the question arises, which challenges can be
observed when working in different task settings. In a study with 19 secondary school students,
the task settings (1) outdoors at the real object, (2) indoors with photos of the real object, and (3)
indoors with a 3D model of the real object are compared. Based on video recordings, differences
concerning the students’ challenges are examined. The results highlight challenges in estimating
and measuring when working at the real object, scale and perspective when working with photos
and the transfer between representation and object when working with 3D models.
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