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2004
Springer

Modeling the Development of Problem Solving Skills in Chemistry with a Web-Based Tutor

9 years 4 months ago
Modeling the Development of Problem Solving Skills in Chemistry with a Web-Based Tutor
This research describes a probabilistic approach for developing predictive models of how students learn problem-solving skills in general qualitative chemistry. The goal is to use these models to apply active, real-time interventions when the learning appears less than optimal. We first use self-organizing artificial neural networks to identify the most common student strategies on the online tasks, and then apply Hidden Markov Modeling to sequences of these strategies to model learning trajectories. We have found that: strategic learning trajectories, which are consistent with theories of competence development, can be modeled with a stochastic state transition paradigm; trajectories differ across gender, collaborative groups and student ability; and, these models can be used to accurately (>80%) predict future performances. While modeling learning in chemistry developed the approach, it is applicable to many science domains where learning in a complex domain can be followed over t...
Ron Stevens, Amy Soller, Melanie Cooper, Marcia Sp
Added 02 Jul 2010
Updated 02 Jul 2010
Type Conference
Year 2004
Where ITS
Authors Ron Stevens, Amy Soller, Melanie Cooper, Marcia Sprang
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