Extending positive C-LASS results across multiple instructors and multiple classes of Modeling Instruction

Abstract

We report on a multi-year study of student attitudes measured with the Colorado Learning Attitudes about Science Survey (CLASS) in calculus-based introductory physics taught with the Modeling Instruction curriculum. We find that five of six instructors and eight of nine sections using Modeling Instruction showed significantly improved attitudes from pre to post-course. Cohen's d effect sizes range from 0.08 - 0.95 for individual instructors. The average effect was d = 0.45, with a 95% confidence interval of (0.26 - 0.64). These results build on previously published results showing positive shifts in attitudes from Modeling Instruction classes. We interpret these data in light of other published positive attitudinal shifts and explore mechanistic explanations for similarities and differences with other published positive shifts.

18 pages, 4 figures

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