Two key assumptions fundamental to theories and research that explain the learning of tertiary students is that students readily know and can articulate which behaviours of academics positively influence their learning. In this study open-ended questions were used to elicit responses from 200 students, one group enrolled in psychology as a major, and another group studying psychology units as an elective. Results showed that there was no difference in the perceptions of students as a function of their major in psychology. Clear and professional delivery of material was most frequently identified as best practice for academics. Students knew this because it was most frequently associated with student understanding and performance. The teaching approach of academics and the aids to learning used by academics were nominated most frequently as staff activities that enhanced student learning. Students knew this was effective because it enhanced understanding and performance and because of the provision of information from staff. It was suggested that academics could be more effective and students would learn more effectively if lectures and tutorials were delivered more carefully and facilities and aids were improved. For each question, between 12% to 40% of respondents did not know how to appropriately respond. The discussion focused on the meaning of the no responses, the identified factors of instructional metacognitive knowledge, the areas that academics might improve, and the necessity for instructional metacognitive knowledge to accompany information transferred in lectures and tutorials.