Described were a selected group of outdoor laboratory experiences utilizing the techniques and concepts of the contemporary indoor laboratories. (Author/CP)

Author gives some historical precedents for performance contracting and educational accountability, both having been tried 100 years ago. (MB)

The process by which a child learns music is discussed. (CK)

Article describes new materials testing laboratory course which introduces the student to fundamental concepts of experimentation. (IR)

Describes the physics program in Scottish secondary schools. The discussion includes (1) the course objectives, (2) the instructional approach, (3) curriculum sequence, (4) laboratory experiments, (5) student project work, and (6) the tests used. Bibliography. (LC)

Describes and apparatus designed to generate and detect pulsed ultrasonics in solids and liquids over the frequency range 1-20 MHz. Experiments are suggested for velocity of sound, elastic constant and ultrasonic attenuation measurements on various materials over a wide temperature range. The equipment should be useful for demonstration purposes.…

Describes a simple photometer capable of measuring small light intensities over small areas. The inexpensive, easy-to- construct instrument is intended for use in a student laboratory to measure the light intensities in a diffraction experiment from single or multiple slits. Typical experimental results are presented along with the theoretical…

Reviews the techniques used by Rutherford in his experiments on thorium, and suggests ways for repeating and re-examining the experiments by capable sixth-form physics students. (LC)

Based on a paper given at the Third Annual Conference of the International Association of Teachers of English as a Foreign Language, London, England, December 30, 1969 to January 2, 1970. (VM)

Describes fecal pellet identification as a technique for animal population surveys. (CP)