This article presents a simple, cognitive theory of science and learning. The first section of the paper develops the theory's two main propositions: (i) A wide range of scientific activities rely heavily on one type of reasoning, hypothetical thinking, and (ii) This type of reasoning is also useful to students for learning science content. The…

Misinformation has been extensively studied as both maliciously intended propaganda and accidentally experienced incorrect assumptions. We contend that "conceptual contamination" is the process by which the learning of incorrect information interferes, pollutes, or otherwise disrupts the learning of correct information. This is similar…

We present research from an investigation on developing a learning progression (LP) for sea level rise (SLR), a major effect of global climate change. We began our research by drafting a hypothetical LP for sea level rise, informed by extant knowledge of the topic in the scientific community, in science education literature, and in science…

The study reported here examines the learning approaches adopted by students enrolled in introductory chemistry at a public university. To evaluate learning approaches, a group of 61 students enrolled in the course were interviewed at three time-points during the semester, specifically to ascertain how they prepared for the exams. From these…

The connection between the molecular-level structure of a substance and its macroscopic properties is a fundamental concept in chemistry. Students in college-level general and organic chemistry courses were interviewed to investigate how they used structure-property relationships to predict properties such as melting and boiling points. Although…

The central goal of this study was to characterize the mental models of acids and acid strength expressed by advanced college chemistry students when engaged in prediction, explanation, and justification tasks that asked them to rank chemical compounds based on their relative acid strength. For that purpose we completed a qualitative research…

We describe efforts toward the development of a hypothetical learning progression (HLP) for the growth of grade 7-14 students' models of the structure, behavior and properties of matter, as it relates to nanoscale science and engineering (NSE). This multi-dimensional HLP, based on empirical research and standards documents, describes how students…

This study examined an interdisciplinary scientific research project to understand how graduate and undergraduate honors students learn to do science. It was found that the education of the students occurs as part of an apprenticeship. The apprenticeship takes place in research groups. In general, research groups are structured in two ways:…

This study aims to add to the growing research related to the implementation of non-traditional writing tasks in classrooms to encourage science literacy. A secondary reanalysis methodology was employed to review student interviews collected as a part of several individual studies during a ten year research program. This method established an…

Prior research in both education and cognitive science has identified analogy making as a powerful tool for explanation as well as a fundamental mechanism for facilitating an individual's construction of knowledge. While a considerable body of research exists focusing on the role analogy plays in learning science concepts, relatively little is…

In the literature, learners' cognitive development is mainly discussed with respect to changes in learners' content-dependent knowledge (conceptual change or growth). Additional dimensions of time and complexity may also be taken into account to describe cognitive processes in at least three dimensions. We discuss these three dimensions of…

It has been proposed that situated cognition theory, in which learning is conceptualized as induction into a community of practice through the activity of legitimate peripheral participation, offers an appropriate theoretical perspective for examining issues of gender in science education. This study critically engages with this proposal by means…