A laboratory experiment is described which illustrates such concepts as resonance, inductive, steric, and solvation effects in a beginning organic chemistry course. This experiment is designed to encourage students to predict results and interpret their findings. (MR)

Discusses the introduction of element evolution and isotopic composition as topics for introductory chemistry courses. (SL)

Reviews the fundamentals of the equation of motion for the bicycle. (SL)

Describes an alternative to the historical approach for teaching special relativity to secondary physics students. (SL)

Provides a basic introduction to chemical equations. (SL)

Reviews the subject of the electronic structures of metals which produce magnetism. (SL)

Examples from daily life used to describe the difference between weight and mass are given. The concept of mass is analyzed and a four stage program for developing the concept is outlined. A final demonstration which graphically shows that weight is relative and mass is constant is described. (AJ)

Reports concepts which 12th-grade physics students hold about motion before and after a lecture is given. Compares quantitative and qualitative research methodology and describes some responses to test items. Shows six questions, student responses, and typical incorrect explanations used by students. (YP)

Introduces optical experiments and observations for an airplane passenger including scratches on a window, scattering of light, and reflection images. Provides several diagrams. (YP)

Describes cosmic flukes which offer a unique window on new information about the universe. Discusses the historical background, theory, and detection of this effect. Proposes the importance of information found by the examination of these phenomena. (CW)

Presents two views about lenses and optics in attempt to clarify a story written by Carolyn Hermann, "Through the Magnifying Glass." Cites two references for additional reading on students' optics difficulties. (RT)

Examined the effect of matching learners' cognitive styles with science learning activities on changes in science knowledge and attitudes. Fifty-six elementary education majors, identified as Sensing Feeling types on the Myers-Briggs Type Indicator, participated in the study. Results revealed no significant differences between matched and…

Reported the development and validation of an integrated model of performance on chemical concept-volumetric analysis. Model was tested on 265 chemistry students in eight schools.Results indicated that for subjects using algorithms without understanding, performance on volumetric analysis problems was not influenced by proportional reasoning…

Discusses some of the problems encountered in teaching electronics in British secondary schools with regard to understanding certain concepts. Describes some ways of teaching the concept of potential in a secondary electronics course. (TW)

Reports on a study designed to investigate secondary school students' misconceptions of conservation principles and fields. Results indicate that misconceptions appear to persist and that students were unable to transfer knowledge readily. Also teachers appear not to be fully aware of students' misconceptions. (ML)