Tim taught in a wide variety of schools over a 37-year career. He served as Head of History and then, for nine years, Director of Studies at Haileybury, where he introduced the International Baccalaureate Diploma Programme. He also played a key role in establishing the IB at Brentwood School. For 12 years, he was a Governor at Woldingham School and also served as Chair of Governors at his local primary school. He is now a senior examiner for the International Baccalaureate and an IB textbook author.
