Much has been studied and written in the last several years about computer technology in the classroom, teacher training in computer applications, and teacher use of the computer in the classroom. An evaluation was conducted of a school-based computer course on classroom applications with an emphasis on science material above elementary level. The course was designed to provide teachers with a preliminary knowledge of the Macintosh computer, available software, and applications. A pre-test, post-test, and computer course evaluation was given to 19 middle school teachers in a suburban New Jersey school to determine whether a correlation exists between in-house computer training and teachers' computer use in the classroom. The findings indicate that a correlation exists and that the participants liked taking the course and now have a better understanding of how to use the computer as a teaching tool. Appendices include a request for permission from the instructor of the in-house computer class; teachers' computer assessment questionnaire, computer course assessment, and evaluation of instructor and course; and e-mail requests and responses for permission to use other scholars' related papers. (Contains 33 references.) (Author/SWC)