At the end of the program, all 22 student teachers were recommended for their respective teaching licenses, although they had made varying degrees of progress in the development of TPCK. Assessments by the supervisors, cooperating teachers and the students themselves, declared that 14 of the 22 students as having met the outcome of a TPCK for using technologies to engage students in learning science and mathematics; the remaining eight students all recognized they needed more work toward TPCK. Five case studies describe the differences in their development of TPCK.