Milwaukee Area Technical College's (MATC's) responses to the need for developmental mathematics instruction are reviewed in this paper. The paper begins by briefly describing a project which MATC undertook in 1965 through 1970 to develop technical mathematics materials and courses which were relevant for technicians and matched the entry-level skills and learning speed of the students. It goes on to describe the development of MATC's Crossover Program, which provides basic skills courses to prepare students for entry into technical career programs. After describing the courses and placement procedures used in the General, Health, and Technical Crossover Programs, the paper presents a report on the materials, methods, and results of one section of arithmetic, taught during the summer of 1980. This report describes the MATC-developed module series, the use of diagnostic pretests, the instructional format, and student attrition. It then analyzes student performance, presenting test items which were answered correctly by 100% of the students completing the math course and items which were performed correctly by less than 67% of the students. Each subject area on the final exam is then examined in terms of the number of students performing items correctly. Finally, the report presents a discussion of students' negative attitudes towards mathematics, including samples of student comments about their feelings toward math. (KL)