Investigates the conceptions and representations of light propagation, image formation, and sight typical to preinstruction learners (N=139). Findings indicate that preinstructional students display some familiarity with optical systems, light propagation, and illumination patterns and have not developed a consistent descriptive and explanatory…

Presents activities to demonstrate that current technology allows readily accessible representations in algebraic, numeric, and geometric forms. Argues that integrating these different representations into the curriculum helps students to think more critically about systems. Discusses problem solving using multiple representations, equivalent…

Discusses some features of instructional approaches that promote meaningful learning. Focuses on creating an environment in which students can be mentally attentive. (DDR)

Presents the results of a study that identifies misconceptions in chemistry by means of a two-tier diagnostic instrument. Data indicate that similar misconceptions are held by both Singaporean and Australian populations. Focuses on covalent bonding and structure. (DDR)

Analyzes textbooks on thermodynamics with the aim of showing that several mental representations of this subject matter are present in scientific literature. Outlines divergent attitudes towards the definition of fundamental concepts and also towards the epistemological status of thermodynamics. Highlights the importance of historical…

Points out that today's taxonomy is very different than what many biology teachers learned when they were in school. Traces the history of some of the changes and describes the current taxonomy. (DDR)

Recommends the use of concept mapping in science teaching and proposes that it be presented as a creative activity. Includes a sample lesson plan of a potato stamp concept mapping activity for astronomy. (DDR)

Analyzes the problem students have in learning the Theory of Relativity. Points out that the results of the study are ambiguous and intriguing. Describes the publication of Lorentz's Transformation Equations, the presentation of two postulates by Einstein, and the rejection of the Electron Theory and the final acceptance of the Theory of…

States that the shift in meaning of the Periodic Table to represent regularities in the electron distribution in the shells of atoms can result in confusion between elements and atoms. (DDR)

This paper examines the nature of physics students' knowledge, the means to identify alternative conceptions, and possible methods to overcome misconceptions. This examination is a survey of the techniques and ideas of a large number of researchers who are seeking their own solutions to this problem. An examination of the nature of knowledge…

Describes a module that combines a traditional hex nut activity with a sugar cookie activity to provide students with an in-depth understanding of balancing chemical equations. (DDR)

Presents an account of one teacher's path to realizing the depth of intuitive beliefs about science. Organizes chemistry misconceptions into eight patterns of reasoning that include thinking rules and alternative conceptions. (DDR)

Analyzes didactic problems related to the inseparability of electric charge from the mass, the impossibility of its direct observation, and the meaning associated with the basic concepts of electricity. Contains 44 references. (DDR)

Describes a study in which secondary students (N=32) were interviewed to determine their understanding of the nature of scientific knowledge. Presents some of the strengths and weaknesses of these views and provides cross-cultural comparisons. (DDR)

SCALE-UP is an extension of the highly successful IMPEC (Integrated Math, Physics, Engineering, and Chemistry) project, one of North Carolina State's curricular reform efforts undertaken as part of the SUCCEED coalition. The authors utilize the interactive, collaboratively based instruction that worked well in smaller class settings and find ways…