The teaching of introductory computer programming seems far from successful, with many first-year students performing more poorly than expected. One possible reason for this is that novices hold "non-viable" mental models (internal explanations of how something works) of key programming concepts which then cause misconceptions and difficulties. An…

We present an innovative pedagogical approach that we call "constructive evaluation," which shifts students from being consumers of knowledge to participants in a community of peers engaged in actively producing and sharing knowledge. Students are required to author a question that assesses one or more of the learning outcomes of a course. In…