This study was undertaken to examine the status of computer-based instruction in Vancouver secondary schools which is categorized as computer-science courses or traditional courses which use the computer merely as a problem-solving and learning aid. Then schools participated in an examination of the computer-science courses. This aspect of the study consisted of five parts: a questionnaire to teachers, a questionnaire to students, a set of problems for students to measure their problem-solving ability, observation of three computer science classes in progress, and administration of the Computer Programmer Aptitude Battery to one computer class. This study summarized the findings of the teacher and student questionnaires regarding computer based instruction. Observation of three computer science classes generally supported the results of these questionnaires. The performance of the students on the programming problems indicated that they were capable of at least fundamental programming. Examination of one class' performance on the Computer Programmer Aptitude Battery illustrated that the computer science course had helped to improve the students' reasoning ability. Included in the appendices are the student and teacher questionnaires, problem sets, computer games and examples of computer programs written by students. For related documents, see TM003469 and 003476. (Author/RC)