As technology develops and students are being exposed to it from the day they are born, it necessitates a change in the way they receive tuition. This study explores the relevance of traditional personal teaching theories in a technologically advanced educational environment. Self-completion questionnaires were issued to lecturers, ranging from junior lecturers to senior professors, of a leading South African university in order to determine their teaching philosophy and theory. Four basic theories of teaching (transfer, shaping, traveling, and growing) were unpacked and elements thereof were included in the questionnaires. It is clear from the study that critical thinking is the preferred teaching theory of lecturers. It is recommended that uniform approaches to teaching be adopted by lecturers in order to improve students’ learning and success.