On the differences between correct student solutions

Authors:
Andrew Luxton-Reilly;Paul Denny;Diana Kirk;Ewan Tempero;Se-Young Yu
Affiliations:
The University of Auckland, Auckland, New Zealand;The University of Auckland, Auckland, New Zealand;The University of Auckland, Auckland, New Zealand;The University of Auckland, Auckland, New Zealand;The University of Auckland, Auckland, New Zealand
Venue:
Proceedings of the 18th ACM conference on Innovation and technology in computer science education
Year:
2013

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Abstract

We know that students solve problems in different ways, but we know little about the kinds of variation, or the degree of variation between these student generated solutions. In this paper, we propose a taxonomy that classifies the variation between correct student solutions in objective terms, and we show how the application of the taxonomy provides instructors with additional insight about the differences between student solutions. This taxonomy may be used to inform instructors in selecting examples of code for teaching purposes, and provides the possibility of automatically applying the taxonomy to existing solution sets.