studentsenrolled in the course, much of infrastructure is necessary for maintaining the course. Ourapproach in implementing M&I was to make gradual changes in all these areas.M&I was first offered at Georgia Tech as a small, pilot section of about 40 students, taught by apost-doctoral fellow hired expressly for the purpose of assisting in implementing and teachingthe curriculum. As shown in Table 1, the number and size of lecture sections using the M&Icurriculum have expanded since then. By spring 2008, approximately 30 percent of students Page 13.707.3enrolled in the introductory physics sequence were in M&I-based sections. The number