In The Chinese High School, she was Education Consultant for Mathematics and pioneered the Mathematics Gifted Programme. In addition, she was the teacher-in-charge of the Online Quiz website for the Singapore-Asia Pacific Mathematical Olympiad for Primary Schools in which she was a member of the Question Committee.
An author of numerous books, including
- Maths D'light for primary schools (age 10 to 12) by Shinglee Publishers Pte Ltd in 1993.
- Eight assessment books on Elementary Mathematics and six on Additional Mathematics for secondary schools by Singapore Asian Publications and Shinglee Publishers Pte Ltd from 1977 to 2007.
- Four school text books on Elementary Mathematics (Sec 1 to 4, age 13 to 17) and one on Additional Mathematics (Sec 3 & 4, age 15 to 17) by Shinglee Publishers Pte Ltd in 2007.
- Challenge Your Brain GEP and MATH Olympiad Questions 1 (Pri 3 to 4, age 9 to 10) by Shinglee Publishers Pte Ltd in 2010
- Challenge Your Brain GEP and MATH Olympiad Questions 2 (Pri 4 to 5, age 10 to 11) by Shinglee Publishers Pte Ltd in 2010
The assessment books and text books are used by some schools in USA and Commonwealth Countries.
In addition, Loh Cheng Yee was the setter of the Mathematics papers for the People’s Republic of China-Scholarship Selection Test, an important local government examination and Overseas Scholarship Selection Test. She has also conducted Mathematical Olympiad Workshops for primary and secondary Mathematics teachers in Malaysia and Brunei and Mathematical Olympiad courses in the following top schools :
Singapore: Methodist Girls’ School, Commonwealth Secondary School, Crescent Girls’ School, CHIJ Secondary School (Toa Payoh), Hwa Chong Institution and Hwa Chong International School.
Overseas: Shanghai-Singapore International School (China) and Singapore Piaget Academy (Indonesia).
