About Ho Soo Thong


Studying, Teaching and Writing

Ho Soo Thong obtained his B.Sc. (Hons) in Mathematics from the University of Singapore in 1969. After graduation, he joined the education service and taught in at the Pre-University level, Shortly after, he wrote his first book, College Mathematics Vol. 1 (with Tay Yong Chiang and Kho Kee Meng).

He then embarked on his first research work for a M.Sc, which was eventually published in the paper, An Lp bound for the Remainder in a Combinatorial Central Limit Theorem (with Prof. Louis Chen) in the Annals of Probability 1978.

Following this, he was awarded the Commonwealth Postgraduate Scholarship for M.Sc. in Computing Science from Imperial College, University of London in 1980.

Upon returning from an enriching stay in London, he accepted an invitation to write the book, Panpac Additional Mathematics (with Khor Nyak Hiong). The book and its revised editions have since been approved textbooks used in secondary schools in Singapore. He retired from teaching in 2003.

Work on the Bar Model Method

In 2010, he wrote the book, Bar Model Method for PSLE and Beyond (with Ho Shuyuan). The book focuses on solving word problems using the counting approach, coupled with distinctive key features and the use of the Greatest Common Unit Procedure (Euclidean Algorithm) for the Unitary Method. The next book he wrote was Problem Solving Methods for Primary Olympiad Mathematics (with Ho Shuyuan and Leong Yu Kiang). Its contents include the bar modelling ratio approach to word problems, geometric problems and speed problems.

 In 2013, he wrote a simple book titled Bar Model Method for Job Problems which sed Euclidean Division Algorithm for a direct counting approach to solving challenging job problems in a  in 2013. To further apply the Bar Model Method at higher levels, Ho wrote his latest book, Bar Model Approach to Linear Diophantine Equations which used bar models to depict the scenarios of Linear Diophantine Equations.

Web Publishing

In 2014, Ho founded the website, barmodelhost.com, to publish short lived articles. These articles highlight the flexibility in the bar modelling approach when applied in a variety of word problems. 

Two New Ventures

His present endeavour specialises in examples and problems related to recent PSLE questions in an e-learning website, alpha-psle.sg. 

In the site alpha-beyond.sg, he aims to illustrate the effective use of bar modelling problem-solving strategies for more challenging problems.