This guide was prepared as an aid to teachers of general science 1-2, grade 8. One of the major purposes of the guide is to assist the teachers in adopting a discovery-oriented approach in the classroom. The course is designed to prepare able students for the advanced science courses, grades 9-12. Teaching techniques, homework, laboratory…

Studied were (1) the evolving use of the microscope in science education, and (2) its relationship to the changing teaching methods, content, and emphases of science courses and to the prevailing philosophies of education of nineteenth century American colleges. To establish the necessary background, the evolution and availability of the…

A discussion is presented of the importance of science in the school program, the objectives of science teaching, and facilities for science instruction. Descriptions are then presented regarding the size and facilities necessary for the general science room, the darkroom, the biology room, the physics room, and the chemistry room. Two diagrams…

Experiments to measure range, range straggling, stopping power, and energy straggling of alpha particles are discussed in this article. Commercially available equipment with simple modifications is used for these measurements. (Author/GA)

Describes the preparation of suitable solid electrolytes and cells which may form the basis of a laboratory teaching program designed to illustrate a variety of electrochemical ideas. ( Author/CP)

Equipment and teaching suggestions for science in the middle school are presented. (CP)

Describes a series of polarography experiments using commercially available pulse polarography instruments. (SL)

Product noise ratings for a number of laboratory air blowers are reported and several recommendations for reducing laboratory noise from air blowers are given. Relevant noise ratings and methods for measuring noise emission of appliances are discussed. (BB)

Explains the theory and laboratory construction procedures of a positive photoresist. (CP)

Describes the construction of an apparatus for demonstrating the center of percussion and pivot point of a ball being struck. (MLH)

A rapid scanning polargraph, constructed from inexpensive parts, which can delay voltage scan for a predetermined length of time, is described. Schematic diagram of the instrument is included. Uses of the instrument are described. (MR)

Describes the construction of a direct-reading azimuth protractor (DRAP) used for mapping fracture and joint-surface orientations in underground mines where magnetic disturbances affect typical geologic pocket transit. (SL)