Discusses the evaluation of educational software designed for use with microcomputers, and emphasizes the need for criteria based on learning theories rather than technological considerations. A review of the literature highlights teacher training in software selection and predictive evaluation, and 49 references are included. (Author/LRW)

Examines the cognitive effects of learning to program versus programming as it is experienced in introductory classes. Research studies that have analyzed the cognitive demands of programming are reviewed and criticized, problems of transfer of programming skills are discussed, and 42 references are provided. (LRW)

Form and function of reinforcement is discussed with attention to the focus for feedback. Case studies of five junior high schools provide data and field notes for a tentative analysis of the determinants of reinforcement including organizational factors and types of computer assisted instruction applications. (Author/MBR)

Factors which may impede or promote development of computer assisted instruction are identified through interviews with teachers to ascertain attitudes and learn how computer experience had been gained, visiting a school to track computer usage, and recording first experiences of computer software use in classrooms. Suggestions for initiation…

Arguing that a well designed graphical display can function as a memory store, this article suggests three principles for the design and use of computer graphics: parsimony, accessibility, and reflection. It is suggested that "progressive graphics" are particularly suited to computer implementation. (Author/MBR)

It is argued that science's reputation as a "hard" subject can be attributed to four intrinsic features of science and/or learners. The reasons for a link between abstraction and difficulty are briefly explored. It is suggested that certain extrinsic features of science education, resulting from choices by science educators, exacerbate these…