Briefly describes hardware and software requirements for a computer based learning system. The methods used in various systems are reviewed briefly. (TS)

Experiments are designed with application to phenomena of the real world for use in a third-quarter introductory college physics course in wave motion, sound, and light. The computer is used to process and analyze experimental data and to extend experimental observations through simulation. (Author/TS)

The objectives and methods of a free undergraduate laboratory are set forth. The main features are a close connection between the students and the research groups, a large amount of student freedom and responsibility, and no grading of the students. (Author/TS)

Presents the theoretical explanation of the observation that when a pen that is stuck in a hard rubber ball and dropped, the pen may bounce to several times the dropped height. Includes the procedure and models created to explain the observations. (DS)

Suggests methods of teaching principles of geological inference by observation of sidewalks, parking lots, school grounds, and vacant lots. (AL)

Laboratory procedures are explained for taking benzoic acid and using it or one of its derivatives throughout an introductory lab course. Synthesis, purification, weight determination, identification of an acid, equilibrium constant, salt preparation, salt analysis, and salt solubility measurements are involved in the semester's experience. (DS)