ISF Academy principal Dr Felicia Tsang Sau-fun (above) has an unusual background for a head of school, as a former electrical and biomedical engineering academic. Tsang was born in Hong Kong and went to Maryknoll Sisters' School. But she has been in the United States since her student days, returning to Hong Kong last September. An MSc in biomedical engineering at Dartmouth College was followed by a PhD from Boston University. She spent several years at the Harvard Medical School researching high-energy radiation in cancer therapy. Tsang developed a taste for school management in the mid-1990s, when she and a group of parents dissatisfied with the middle school in their hometown of Chelmsford, Massachusetts, decided to set up their own. Although this is her first time as head of a primary or secondary school, Tsang has had leadership experience as the director of education for live interactive television programmes for kindergarten to Grade 12 pupils, and as principal of a Chinese language and culture school for children up to Grade Eight in Massachusetts.