Discusses use of microcomputers to assist teachers in diagnosing student errors. Examines what can be diagnosed, whether diagnosis helps, what diagnosis programs can do, what goes into a diagnosis program, and how the programs can be used. Suggests that software be developed for this purpose. (JN)

Algebraic and computer solutions are offered for a problem on time payment scheduling. The problem, falling within the scope of high school algebra, could focus only on the algebraic methods, but including the computer brings out the relationship between the power of algebra and the power of modern technology. (JN)

Four uses of microcomputers in elementary science education are discussed. These include: (1) drill and practice; (2) simulation; (3) problem solving; and (4) programing. Indicates that mathematics instruction may be enhanced in the same ways. (JN)