In both groups,
the students generally and implicitly regarded gardens as two-dimensional areas probably also due to the phrasing of the task.
Furthermore, the students in both groups decided to abstract away from the technical guidelines for the TVR and, therefore, use arbitrary angles and radii.
Both assumptions were only implicitly used by the students as a basis to start from and they were never explicitly named as assumptions for the model.
In order to raise the students’ awareness concerning modelling processes, the mentoring students pointed out these implicit assumptions and characterised them as modelling assumptions and, therefore, as a part of the modelling.