"Dr. B" as he is affectionately called by his students, grew up in Point Pedro, a small town in northern Sri Lanka. The second of eight children, Kathir says he was lucky enough to have not only excellent math teachers, but a strong mother who taught him to work hard and dream big. After coming to Canada and completing a PhD in chemistry at Dalhousie, Kathir entered high school teaching where he has taught both chemistry and mathematics in Scarborough schools since 1988.
 Kathir is Curriculum Leader for Mathematics at Sir John A. Macdonald C.I. in Scarborough where he has been a leader in improving the delivery of mathemaics education. Indeed, his students say he makes learning math fun. An outstanding problem poser and solver, Kathir has helped many students succeed in national and international contests in mathematics and chemistry. He has been a key member of the Scarborough Math League and currently serves on the Euclid Contest Problems Committee.
 He enjoys listening to both eastern and western music, has played cricket, soccer and softball and loves running and travel.