Garry was the Director of the Doctorate in Educational Psychology programme and supervised doctorate students on the Doctoroate in Educational Psychology (DEdPsy), Doctorate in Counselling Psychology (DCounsPsy) and PhD programmes. He has provided additional support to trainee educational psychologists on an ad hoc basis. He has taught selected sessions on the DEdChPsychol and DCounPsy programmes and led modules on the MEd in Educational Psychology programme. He is now teavching on the BSc Educational Psychology programme and leading on neuropsychology (The Brain Goes to School), cognitive psychology, special educational needs, and jointly leading on the school placement module, Exploring Psychology in the Classroom.
Garry has provided training to Educational Psychology services throughout England in cognitive behavioural therapy and in the assessment of dyslexia.