Describes the application of an integrated-circuit (IC) chip which provides an easy-to-use, inexpensive, rugged, computer-interfaceable temperature sensor for calorimetry and differential temperature measurement. Discusses its design and advantages. (JRH)

Presents a list of six concepts that form the basis of modern chemistry and that should be included in introductory chemistry courses. Discusses atoms, molecules, and ions; the chemical bond; molecular shape and geometry; kinetic theory; the chemical reaction; and energy and entropy. (JRH)

Presents a technique used in a biochemistry course in which students present a poster session at the end of the course. Results indicate that students exhibit enthusiasm for their topic and that this technique can be used as an alternative assessment method. (DDR)

Describes a chemistry course with the goal of fostering a broader and deeper understanding of a few fundamental concepts through group discussion, instructor exposition, and participant-developed laboratory and demonstration activities. (DDR)

Explains the procedures used in an experiment that reinforces the universality of the concepts of saturation using the binding of the ligand aspartame to the protein receptor that determines taste. Illustrates the hyperbolic nature of protein binding. (DDR)

Provides a critical analysis of the role that atomic theory plays in the science curriculum from elementary through secondary school. Examines structural concepts from the perspective of the theory of meaningful learning, information processing theory, and the alternative conceptions movement. Contains 54 references. (DDR)

Recommends an approach to the treatment of acid-base equilibria that involves treating each reaction as either going to completion or not occurring at all. Compares the method with the traditional approach step by step. (DDR)

Presents a new approach to an older demonstration involving the reaction of sodium with water. Materials list, procedures, and a discussion of hazard and disposal considerations are included. (DDR)

Lists 36 topics that may optimize the effectiveness of teaching and learning in the scientific disciplines at the university level. Topics are related to planning for instruction, the role of a syllabus in guiding instruction, and interaction strategies. (DDR)

Provides background information and detailed procedures for a lab involving pennies that enables students to discover information on scientific methodology, experimental design, and the determination of density. Contains 26 references. (DDR)

Presents design and construction details of a controlled temperature heat block. Includes information about the heater block, thermistor probe, circuit board, and the housing. (DDR)

Suggests that the development of good chemistry teaching and the pursuit of research have essentially the same structure. Similarities include the need for a clear focus, efficiency in time and effort, and a direction that is more often right than wrong. (DDR)

Argues that the current cohort of teachers is not comfortable with science and avoids teaching science because of ignorance, disinterest, and lack of support from school authorities. Also states that scientists have doubts about the current university curriculum for teachers. (DDR)

Describes the use of Moe's Mall, a locational device designed to be used by learners, as a simple algorithm for solving mole-based exercises efficiently and accurately using dimensional analysis. (DDR)

Describes a project that was designed to teach scientific writing but also proved to be useful in teaching general research skills. Involves students designing and conducting their own research projects using common household chemicals and equipment available in their homes. Discusses project structure, pedagogy, and outcomes. (JRH)