Darwinian evolution is difficult to understand because of conceptual barriers stemming from intuitive ideas. This study examined understanding of evolution in 52 students (M = 14.48 years, SD = 0.89) before and after a guided field trip to a natural history museum and in a comparison group of 18 students (M = 14.17 years, SD = 0.79) who did not…

Within the increasing body of research that examines students' reasoning on socioscientific issues, we consider in particular student reasoning concerning acute, open-ended questions that bring out the complexities and uncertainties embedded in ill-structured problems. In this paper, we propose a socioscientific sustainability reasoning…

Researchers in the science education community make extensive use of cognitive clinical interviews as windows into student knowledge and thinking. Despite our familiarity with the interviews, there has been very limited research addressing the ways that students understand these interactions. In this work, we examine students' behaviors and speech…

This study explored whether adding a haptic interface (that provides users with somatosensory information about virtual objects by force and tactile feedback) to a three-dimensional (3D) chemical model enhanced students' understanding of complex molecular interactions. Two modes of the model were compared in a between-groups pre- and posttest…

The characterization of students' cognitive biases is of central importance in the development of curriculum and teaching strategies that better support student learning in science. In particular, the identification of shortcut reasoning procedures (heuristics) used by students to reduce cognitive load can help us devise strategies to foster the…

When teachers or students assess the quality of ideas in science classes, they do so mostly based on "textbook correctness"; ideas are good to the extent they align with or lead to the content as presented in the textbook or curriculum. Such appeals to authority are at odds with the values and practices within the disciplines of science. There has…

Making assumptions is an important step in solving many real-world problems. This study investigated whether participants who could solve well-defined physics problems could also solve a real-world physics problem that involved the need to make assumptions. The participants, who all had at least a BA in physics, were videotaped "thinking aloud"…

This study investigated the impact of haptic augmentation of a science inquiry program on students' learning about viruses and nanoscale science. The study assessed how the addition of different types of haptic feedback (active touch and kinesthetic feedback) combined with computer visualizations influenced middle and high school students'…

Describes a study which sought to determine whether differences existed between girls and boys in terms of their concept structure interrelatedness competence (ConSIC) in the areas of physical science, life science, earth sciences, between sciences, within sciences and across all sciences by measuring ConSIC. (ML)

Investigated the role of "a priori" ideas in planning experiments and data processing leading to inferences. Thirty-one students (ages 11-13) observed a "combustion/candle in a closed container" experiment and were asked to interpret sets of measurements. Findings, among others, show that children preferentially experiment on…

Describes cognitive mapping techniques compatible with the information processing view of human thinking. Student knowledge was assessed by clinical interview and performance on paper-and-pencil tasks. Concept maps and semantic networks were then constructed. Uses that these assessment tasks and representations might have in science education are…

A general model of conceptual change which is largely derived from current philosophy of science, but which can illuminate learning as well, is described. Some features of this model are illustrated by interviews with students studying special relativity in physics. Finally, some pedagogical implications are presented. (Author/PB)

This study, conducted in an Australian institution, investigates the intellectual requirements of the mechanics section of a first-year college physics text. Instructional and prerequisite concepts were classified in terms of the intellectual skills required to understand them. (HM)

Comments on the study of Mali and Howe (1979) which used the work of Nussbaum and Novak to examine the notions that Nepali children hold about the earth. (HM)

Explores high school student's postinstructional knowledge about mass, volume, weight, and density in terms of what students need to know to successfully solve academic physical science problems. Presents definitions of the concepts, discusses hypothesized knowledge deficiencies, and suggests implications for instructional design. (Contains 31…