The second volume of a three-volume report on a three-year study of the use of computers in secondary school classrooms, this document contains the principal investigators' reports in five sub-project areas. The overall purpose of the project, which was conducted by the education faculty at the University of Western Ontario, was to examine the effects of computer use on classroom teaching and learning and on the structure and presentation of curricular materials. Following a site leader's report, the five areas covered in this volume are: (1) computer aided learning in art, including themes identified through application of grounded theory methods, levels of student cognitive activity, and reports on teacher and student satisfaction; (2) computer use in the areas of technological and family studies, including levels of cognitive activity, gender-based differences, and special hardware and software needs particular to the subject areas; (3) computers in history, geography, and social studies, including the influence of subject subcultures and teaching styles, the traditions of teaching the subject, and their impact on computer use; (4) teacher use of computers for curricular and instructional management; and (5) use of spreadsheets in all classes, including levels of cognitive activity and the stages teachers and students pass through in their use of the computer. Each of these sections covers research methodology, provides recommendations, and includes references. (Contains 66 references.) (KRN)