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Help on query formulation
The authors justify their view that modelling means mathematical interpretations that a student makes in verbal, graphic or symbolic representation form of a situation that is logically and psychologically meaningful for him or her. They carried a study at upper secondary school among 27 students who had iPads as personal devices. The aim was to find out what kind of cognitive and affective outcomes could be gained during a short period of time (6 $\times$ 75 min lessons): (1) Can students give appropriate descriptions of an ellipse (and for a parabola, respectively) in spoken language and in symbolic form? (2) To what extent would students be ready to accept technology-weighted learning, assisted at “pit stops" and via an Internet forum? and (3) How strong support students think the technology-weighted pit stop learning gives for the eight sustainable activities and how this support is related to conventional mathematics teaching? Students showed very modest ability to find appropriate definitions, especially in symbolic form. They did not use the applets outside the classroom almost at all and visited the chat forum as if the question would be about chatting for entertainment. Even though students think the conventional mathematics teaching does not give support for the sustainable activities (order, find, play, construct, apply, calculate, evaluate, and argue) except calculating, the support students think to gain from technology is quite modest, emphasizing rather playing from technology.