Science education programs should encourage the view of science as a human activity. "Man" could provide a useful core for curriculum development programs. (AL)

Reports a student-computer dialog for beginning or intermediate physics classes. This dialog enables the student to take some initiative in showing that energy conservation in one dimension is a consequence of the laws of motion. (DS)

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)

The time between asking a question and accepting an answer or proceeding with the lesson is reported for five lessons for four instructors. There was little change during four weeks of instructor-supervisor conferences intended to alter questioning techniques. (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)

Presents information about the nucleus gained by studies of electron scattering. Discusses what can be implied about the shape of the charge distribution, the nucleus positions, the vibrational modes of the nucleus, the momentum of the nucleus, and the granularity and core structures of the nucleus. (DS)