Edward Gehringer, Luke Ehresman, Susan G. Conger, and Prasad Wagle describe how the Expertiza platform—a custom-designed software tool developed at North Carolina State University—expands the potential of peer review to engage students in active learning. Expertiza allows students to select tasks, submit their own papers or individually designed learning objects, and review work submitted by their peers, thereby helping students learn to improve their skills by working together. The learning objects produced by this system can be improved iteratively: The following years' class, for example, can improve upon the work of their predecessors. This article describes the advantages of courses centered around peer review, details how Expertiza can facilitate this approach, and explains how students themselves can improve the resources they use for their own learning.

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