He has been teaching for 16 years. Tan Keok Kee is a Senior Teacher in Math at Jurongville Secondary School. He has been teaching for 26 years. Zaini Bin Daud is a Senior Teacher in Foundation Math at Blangah Rise Primary School. He has been teaching for 24 years. Their project group also includes Loo Hup Tee, who has been teaching for 14 years and is now at Nan Chiau High School.