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Open Community Authoring of Targeted Worked Example Problems

Summary: Open Community Authoring of Targeted
Worked Example Problems
Turadg Aleahmad, Vincent Aleven, and Robert Kraut
Human Computer Interaction Institute
Carnegie Mellon University, Pittsburgh PA 15213, USA
Abstract. Open collaborative authoring systems such as Wikipedia are
growing in use and impact. How well does this model work for the devel-
opment of educational resources? In particular, can volunteers contribute
materials of sufficient quality? Could they create resources that meet stu-
dents' specific learning needs and engage their personal characteristics?
Our experiment explored these questions using a novel web-based tool
for authoring worked examples. Participants were professional teachers
(math and non-math) and amateurs. Participants were randomly as-
signed to the basic tool, or to an enhanced version that prompted authors
to create materials for a specific (fictitious) student. We find that while
there are differences by teaching status, all three groups make contribu-
tions of worth and that targeting a specific student leads contributors to
author materials with greater potential to engage students. The exper-
iment suggests that community authoring of educational resources is a


Source: Aleven, Vincent - Human Computer Interaction Institute, School of Computer Science, Carnegie Mellon University


Collections: Computer Technologies and Information Sciences