Examines the question of the role of laboratory work in influencing Israeli students' perceptions of their chemistry laboratory learning environment. Compares responses on a learning environment inventory of two groups of students, high school students and students enrolled in vocational schools to become future laboratory technicians. (CS)

Describes problems associated with listening to recorded materials and the benefits of using a speech compressor/expander. The device speeds up or slows down recorded speech without distortions and has been used with success in second language instruction, research, and testing. (JN)

The National Technical Institute for the Deaf (NTID) uses a unique, individualized, Self-Instruction Lab to improve students' communication skills. The lab provides students with supplemental independent classroom practice that helps lessen time demands for the teacher. (Author/PHR)

Examines the reorientation process underway at the University of Chicago Laboratory Schools. Discusses the evolution of the laboratory school in general. Reflects upon the history of the Chicago Laboratory Schools and their theories and practical contributions, and weighs prospects for future educational quality in an urbanized, technological…

Describes three activities: determination of the heat of combustion of a commercial breakfast cereal, qualitative analysis of halogens using hexane, and production of transparent soap. (CS)

Describes a science laboratory experiment that can be done at home with the assistance of parents or older siblings. It is offered as an alternative to reading assignments or answering questions for homework. Parental assistance is encouraged. (SA)

Described is independent study research at Garden City High School (Garden City, NY) involving ten students studying seasonal beach erosion, salt marsh preservation, sludge leachate hazards in bays, and sewer outfall effects on barrier bays. Outcomes include better understanding of the scientific process and careful, accurate research. (Author/DS)

Describes a transfer device for fruit flies based on the upward movement of fruit flies. Includes instructions for constructing the apparatus. (CS)

Presents the results of a survey on the status of inorganic laboratory courses. Indicates that they are in a continuing period of evolution and all stages of the evolution are represented in schools across the country. (Author/JN)

Some simple undergraduate laboratory experiments are described, which verify the energy-momentum relationship of special relativity. These experiments have been designed either to be used as classroom demonstrations or to be carried out by second-year students. (Author/JN)

Describes an exercise using dandelion floral stems to demonstrate the movement of water through cellular membranes. (CS)

Samples of materials available to students from grades 4 through 12 at a Mathematics Center are reviewed. The examples are part of a collection of more than 200 mathematical tasks using solid materials in a new approach to problem solving. (MP)

Proposes that more accurate and persistent learning results from programs which permit students to interact with their environment and that the addition of relevant direct and vicarious experiences can lead to improvements in the learning which takes place in traditional academic courses. (JD)

Described is the use of two models of pocket calculators. The Hewlett-Packard HP67 and the Texas Instruments TI59, to solve problems arising in connection with ionic equilibria in solution. A three-parameter regression program is described and listed as a specific example, the hydrolysis of hexavalent uranium, is provided. (BT)

Describes a simple, inexpensive Faraday balance for studying the effect of a strong magnetic field on selected reaction rates. Aschematic diagram detailing the essential features is included. (BT)