To engage meaningfully with scientific models, undergraduate students must come to understand what counts as a scientific model and why. To gain a sense of the characteristics that undergraduate chemistry students ascribe to scientific models, we analyzed survey data that address students' ideas about both model criteria in general and criteria…

A well-ordered biological complex can be formed by the random motion of its components, i.e. self-assemble. This is a concept that incorporates issues that may contradict students' everyday experiences and intuitions. In previous studies, we have shown that a tangible model of virus self-assembly, used in a group exercise, helps students to grasp…

Investigated children's conceptualization of scientific phenomena and intuitive methods learned from their everyday experiences. Explores the nature of tinkering within the context of electricity. Presents a model of tinkering that provides a conceptual framework for the interpretation of tinkering as one of the methods students use to make sense…