Since 1987 I have been conducting experimental studies in teaching different undergraduate mathematics courses using Cooperative Learning approach. The results were positive and teaching style , indeed , enhanced students’ learning and performance. In Fall 1994 , with the strong support of campus administration I have decided to implement this approach together with mentors in teaching three out of twenty – four Sections of Intermediate Algebra. This project was funded by a grant from the University of Wisconsin – Whitewater. The fund has been used to hire four students ( to serve as Mentors and grade weekly homework assignments ) , and also to pay a part – time academic staff to grade all exams for Pilot Group.