Touchscreen devices are spreading an d becoming familiar for many students. This research identifies ways of screen touching during the process of solving problems using the Geometric Constructer (GC) software. We designed a case study with some Italian High School students, who used tablets to solve geometric problems. Since manipulation on tablet is different from that with mouse clicking, this kind of research investigates a new aspect of students‟ behaviours when using dynamic geometry software. Based on researches by Yook (2009) and Park (2011), we provide a new schema focused on geometrical thinking and strategies used by students to solve the proposed tasks. We observed singularities in the way students rotate (using one or more than one finger) and a different way of dragging: the dragg ing to approach.
Ways of manifulation touchscreen in one geometrical dynamic software
ARZARELLO, Ferdinando;
2013-01-01
Abstract
Touchscreen devices are spreading an d becoming familiar for many students. This research identifies ways of screen touching during the process of solving problems using the Geometric Constructer (GC) software. We designed a case study with some Italian High School students, who used tablets to solve geometric problems. Since manipulation on tablet is different from that with mouse clicking, this kind of research investigates a new aspect of students‟ behaviours when using dynamic geometry software. Based on researches by Yook (2009) and Park (2011), we provide a new schema focused on geometrical thinking and strategies used by students to solve the proposed tasks. We observed singularities in the way students rotate (using one or more than one finger) and a different way of dragging: the dragg ing to approach.
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