Students possess alternative conceptions of many science topics, and these conceptions can act as obstacles for learning scientific concepts. In the field of biology education, students' alternative conceptions of evolution have been widely investigated. However, there is little research on how teachers diagnose and deal with these alternative…

We developed and validated a new instrument, called "Measuring Concept progressions in Acid-Base chemistry" (MCAB) and used it to better understand the progression of undergraduate students' understandings about acid-base chemistry. Items were developed based on an existing learning progression for acid-base chemistry. We used the Rasch…

Teaching and learning about complex scientific content, such as biological evolution, is challenging in part because students have a difficult time seeing the relevance of evolution in their everyday lives. The purpose of this study was to explore the effectiveness of the Teaching for Transformative Experiences in Science (TTES) model (Pugh, 2002)…

This study examines students' understanding of the normative connections between key concepts of cell division, including both mitosis and meiosis, and underlying biological principles that are critical for an in-depth understanding of genetic inheritance. Using a structural equation modeling method, we examine middle school students'…

Considers variables which affect the acquisition of the kinetic theory of heat by children who hold alternative viewpoints. Suggests that the articulation of different viewpoints in no way hinders the acquisition of the desired conceptual framework. Emphasizes the benefit to low-reasoning students in particular. (CW)

Describes four chemical terms that students with well-considered reasons use in a way that is not accepted in chemistry. From 4300-7500 senior high school students completed a series of multiple choice tests while other groups of students participated in discussions about the problem situations. Contains 34 references. (DDR)

Israeli children's (kindergarten to grade nine) explanations about the water cycle are described. Reports the children's views about the source of clouds and the mechanism of rainfall. It was concluded that understanding evaporation is a necessary condition for explaining a mechanism of rain containing the ideas of condensation and heaviness. (YP)

Analyzes the concept of teaching from various aspects. Reviews research on students' conceptions of natural phenomena, conceptual change, and teacher thinking. Suggests an appropriate conception of teaching science. (YP)

Examines childrens' (age 8-14) conceptions of shadow formation through interviews. Identifies "the trigger model" of shadows and finds that there are multiple roles that children attribute to light. (YP)

Explores changes in students' conceptions about solution chemistry in the context of instruction based on collaboration between a researcher and an experienced teacher attempting to implement strategies from the literature on conceptual change. (ZWH)

Argues that, by not considering examples drawn from students' everyday lives, a teacher is detracting from science itself. A challenge is made to Conceptual Change Learning Model advocates and users to embrace the idea of conceptual fitting based upon context as well as conceptual change when considering how students learn. (ZWH)

Summarizes the results of three related studies whose overall purpose was to determine elementary students' conceptions about earthquakes at two widely separated locations in the United States. Certain topics, such as the cause of earthquakes, seemed to cause difficulty for students. New definitional responses emerged in the studies that took…

Examines the research literature in science education to determine how appropriate it is for teaching science to young children 3-5 years of age. In the context of this discussion, a model for the teaching of science in early childhood is presented. For clarity and continuity, the example of teaching electricity is used throughout. (PR)

This research endeavored to study student's views of science through their operative definitions of science. The results were used to create an instrument with which teachers could evaluate students' perceptions of science and then prepare lessons that address misconceptions. (PR)

Evaluates the effectiveness of a course using a constructivist approach in reducing Dutch secondary school students (n=190) misconceptions about force. Concluded that the lessons were effective in changing students' ideas in regard to forces in rest situations and frictional forces and that learning effects were equally distributed over student…