“…Whereas "conceptual models are devised as tools for the understanding or teaching of … systems […], mental models are what people really have in their heads and what guides their use of things" (Norman, 1983, p. 12). Mental models that are incongruent with expert-defined mental models have been referred to as misconceptions (Helm, 1980), naïve (Clement, 1993;Kinchin, Hay, & Adams, 2000), preconceptions (Arthurs, 2011;Novak, 1977;Clement, 1993), and alternate frameworks (Driver, 1981;Dal, 2007). For the purposes of this study, "preconception" is defined as prior knowledge or a mental model held before formal instruction during a given period of interest (Arthurs, 2011).…”