Discusses dice model of exponential radionuclide decay; glancing and collinear perfectly elastic collisions; digital capacitance meter; use of top pan balance in physics; microcomputer calculation of gradient of straight line (includes complete Commodore PET computer program); Fresnel lenses; low-voltage radiant heater; Wheatssone's bridge used as…

Presents a discussion of the need to present a realistic view of the process of science to students in the laboratory. Several activities and readings are suggested. (SA)

A laboratory exercise using a gerbil is described for use in the high school biology class and in accordance with the National Science Teachers Association guidelines. The authors cite references that deal with current awareness of the moral status concerning animals. The exercise includes measurement and calculations. (SA)

Presents eight examples from two elementary school science textbook series of misleading suggestions related to what students should observe during science lessons. Levels and page numbers are given for each example. Questions whether textbook authors have tried and analyzed the experiments they describe. (Author/SK)

Outlines procedures for constructing an instrument which uses an electrode and calibration methods to measure the salinity of waters in environments close to and affected by a saline estuary. (Author/DC)

Describes eight learning centers/activities designed to promote tactile/sensory experiences in younger children. (JN)

Offers suggestions for designing outdoor activities to provide students with opportunities for exploring, observing, and discovering. Outlines several science activities for each of the following topics: trees, rocks, soil, insects, wild flowers, grasses, lichens, and clouds. (DS)

Describes a collection of college chemistry demonstrations designed for self-paced classes. Some of these exercises stem from original ideas; others are adaptations of one or more published demonstrations. Two exercises, as examples, are also included. (HM)

Outlines some general considerations relating to gaming and simulation for educational purposes. Provides an example of a simulation and some examples of commercially available materials. Includes a short bibliography related to this topic. (DS)

The individualized learning model, discussed in this article, uses an efficient feedback mechanism which incorporates an innovative student evaluation program and a unique system of classroom management. The design provides a model for monitoring student progress. (Author/SA)

Described is a resource idea developed for the teaching of oceanography to junior high students. Sand is studied to help make the study of beaches more relevant to students who may have never seen an ocean. Sand samples are brought into the classroom from various coastal cities, then analyzed and compared. (Author/DS)

Describes experiments which can be completed in five four-hour laboratory sessions, including two synthesis (alpha-phenylbutyric and alpha-phenylbutyric acid anhydride) and determining the absolute stereochemistry of secondary alcohols using the synthetic products. (JN)

Describes an experiment as an alternative to undergraduate experiments limited to high temperature metal systems or lower temperature systems involving objectionable or unstable materials. Lists six advantages of the experiment. (Author/JN)

Investigates the differences in the improvement in communication deficiencies of selected third- and fifth-grade children who participated in a science-based remediation program and of third- and fifth-grade children who did not participate. (HM)

Discusses a phenomenon called Extrasensory Perception (ESP) whereby information is gained directly by the mind without the use of the ordinary senses. Experiments in ESP and the basic equipment and methods are presented. Statistical evaluation of ESP experimental results are also included. (HM)