This is the teacher's edition of one of the eight units of the Intermediate Science Curriculum Study (ISCS) for level III students (grade 9). The chapters include basic information about heredity, activities, and optional "excursions." The answers to all activities are included. An introduction describes the work of Gregor Mendel and his…

This article discusses universal advantages and disadvantages of various audio systems which may be used for language learning. In order to encourage teachers and administrators to experiment with simpler systems than the conventional language laboratory, a list of several low-cost alternatives is given. The list gives the producer's name, a…

Described in this report is a survey conducted to acquire detailed information about the number, kinds, and uses of language laboratories in Virginia's public secondary schools. An introductory section discusses the development of a questionnaire, its distribution to school superintendents, and the analysis of the results. The major part of the…

Requirements for planning, designing, constructing and installing laboratory furniture are given in conjunction with establishing facility criteria for housing laboratory equipment. Furniture and equipment described include--(1) center tables, (2) reagent racks, (3) laboratory benches and their mechanical fixtures, (4) sink and work counters, (5)…

The basic mechanical functions of the foreign language laboratory described in this report enable utilization of authentic target language, linguistically effective learning devices, visuals, and facilities for monitoring and testing. Brief descriptions of 11 laboratory functions include: (1) isolation (physical, acoustical, and psychological),…

This contrastive listing of the possibilities and problems of the language laboratory is intended for the elementary and secondary school teacher. In this article, the author emphasizes the oral nature of language and the need to treat methods, materials, and machinery as a trinity. (RL)

Describes a field trip activity to measure changes in elevation across the dunes of a barrier beach, measure wind velocity along the transect line, and observe the distribution of ground cover in the study area. Discusses equipment, materials, procedures and follow-up activities for each study. (CW)

Lists five experiments or demonstrations involving hypodermic syringes. The titles of experiments are Boyle's Law, Charles' Law, Atmospheric Pressure, Expansion of Gases, and Boiling at Reduced Pressure. Provides a list of materials, the typical data, and graphs where appropriate. (YP)

Presented is the use of a microprocessor for mechanics experiments. Described are the experimental set-ups, experimental method, and conclusions. Includes several diagrams and pictures. (YP)

Discusses the need for more safety instruction in high school and college chemistry courses. Reports on a national survey of 2019 college and university chemistry departments. Includes survey results and the descriptions of 50 accidents which the institutions reported. (TW)

Discusses some aspects of electrodeposition and electroplating. Emphasizes the materials, techniques, and safety precautions necessary to make electrodeposition work reliably in the chemistry laboratory. Describes some problem-solving applications of this process. (TW)

Discusses the goals of learning cycle laboratories in helping students acquire knowledge about a specific topic and to do so moving in a non-threatening way from the concrete operational level to the formal operational level. Describes an experiment designed for such laboratories dealing with the topic of oxidation-reduction. (TW)

Describes laboratory procedures, demonstrations, and classroom activities/materials, including chi-square tests on a microcomputer, an integrated biology game, microscope slides of leaf stomata, culturing soil nematodes, technique for watering locust egg-laying tubes, hazards of biological chemicals (such as benzene, benzidene, calchicine,…

This workbook for teaching a biology course is organized into three sections: (1) teacher guidelines; (2) suggested experiments; and (3) apparatus requirements and evaluation schemes. Some of the topics covered in the 30 biology experiments contained in this book include soil analysis, geotropism, bowfly larvae, germination, seed dispersal, flower…

This research explored the challenge of how students might successfully perform real laboratory experiments over the Internet without being in a laboratory. Numerous distance learning environments were surveyed, and the effectiveness and disadvantages of laboratory facilities currently available over the Internet were assessed. Full and part-time…