The Model Science Lab, a constructivist approach to teaching, strengthens urban science teachers' teaching practice. The retention rate of Houston science teachers who took part in the program was found to be very high and the cost of the Model Science Lab has proven less expensive per student than most other professional development options.

Addresses whether or not science laboratory activities should become a thing of the past. Discusses the impact of the curriculum reforms of the 1960s and 1970s, physical restraints which cause teacher overload, rationale, and objectives of laboratory work. (RT)

Explains the use of the microcomputer as a multipurpose analytical instrument which frees students from the mechanics of science and allows for more active learning involvement. Provides the typical data acquisition configuration, advantages, disadvantages, and a brief summary. (RT)