Yale, Vassar and Smith began a cooperative experimental teacher training program, enrolling not more than five juniors from Vassar to do their fourth year of work for the Vassar degree at Yale. The work included graduate courses in the subject the students planned to teach, a senior seminar and a special interdepartmental course in the philosophy and social history of American education. Housed in a residence hall for women graduate students, Vassar and Smith students in the program were the first undergraduate women to study at Yale.  They received their bachelor’s degrees from their home institutions.

A fifth year consisted of full time paid teaching in public high schools in the vicinity of New Haven, supervised by members of the Yale faculty and cooperating master teachers, accompanied by a seminar at Yale based on actual teaching problems. The degree of Master of Arts in teaching was awarded at the end of the fifth year.