Discusses modifications to general education or introductory chemistry courses that allow visually impaired students to participate productively. Describes a strategy for teaching about elements and density, and the construction of a conductivity tester for visually impaired students. (JRH)

Presents a model to explain the behavior of oscillatory phenomena found in the soda bottle oscillator. Describes recording the oscillations, and the design of the model based on the qualitative explanation of the oscillations. Illustrates a variety of physiochemical concepts including far-from-equilibrium oscillations, feedback, solubility and…

Mentions a few signs of the value of history for science education. Discusses some of the wider benefits that might ensue from bringing history into science. Provides examples from the fields of physics and chemistry. (DDR)

Introduces the Enviroland computer program which features lab simulations of theoretical calculations for quantitative analysis and environmental chemistry, and fate and transport models. Uses the program to demonstrate the nature of linear and nonlinear equations. (Author/YDS)

Describes an educational game in which students get the opportunity to review Lewis structures and molecular geometries through problem solving activities as a team. (YDS)

Presents a spiral puzzle to test students' ability to remember the names of organic reactions and reagents. (YDS)

Outlines a vision for a new kind of master's degree tailored to the needs and talents of high school chemistry teachers that provides for integration of both pedagogical knowledge and content knowledge (chemistry). The program provides for continual professional development by using action research in the high school classroom. Presents an…

Discussed is the performance of college students on the task of solving chemistry problems involving Lewis structures. Difficulty of the task and of individual problems is described. A taxonomy of skills associated with Lewis structures is presented. (CW)

Described are demonstrations designed to reveal the important "nonsolvent" properties of water through its interaction with a toy called "Magic Sand" and other synthetic silica derivatives, especially those bonded with organic moities. The procedures for seven demonstrations along with a discussion of the effects are presented. (CW)

Presented are laboratory methods which allow the demonstration and determination of the diffusion coefficients of compounds ranging in size from water to small proteins. Included are the procedures involving the use of a spectrometer, UV cell, triterated agar, and oxygen diffusion. Results including quantification are described. (CW)

Word associations were used to map high school students' concepts of "chemical equilibrium" and "equilibrium." It was found that the preconception of the two concepts was differentiated on noncritical dimensions. (Author/CW)

Describes circadian timekeeping which matches internal states with environmental changes, and the ultradian clock which coordinates intracellular processes including energy cycles, protein turnover, and cell division. Presents discussions of biological rhythms and its characteristics. (RT)

Using fourier transformation methods in nuclear magnetic resonance has made possible increased sensitivity in chemical analysis. This article describes these methods as they relate to magnetization, the RF magnetic field, nuclear relaxation, the RF pulse, and free induction decay. (CW)

Described is an advanced undergraduate laboratory course which gives students an opportunity to grasp the material better than in the segmented approach. A list of required experiments and a discussion of the evaluation of the course are provided. (CW)

Presented are definitions and a grid to clarify relationships between terms. Discussed is an example of the application of Einstein coefficients and some suggestions for teaching this concept. (CW)