Dr Yeo Kai Kow Joseph is a Senior Lecturer and Assistant Head (Mathematics Education Teaching) in the Mathematics and Mathematics Education Academic Group at the National Institute of Education, Nanyang Technological University, Singapore (NIE NTU, Singapore).  Dr. Yeo holds a PhD in Mathematics Education from the Nanyang Technological University, Singapore.  Prior to his academic career, he began his career as a secondary school mathematics teacher and taught in secondary schools for more than 10 years. He had also held the post of Vice Principal and Head of Mathematics Department in secondary schools.  He was part of the team at the Research and Evaluation Branch in the Singapore’s Ministry of Education between 1998 and 2000.  

His research interests include mathematical problem-solving in the primary and secondary levels, mathematics pedagogical content knowledge of teachers and mathematics anxiety.  He has given numerous presentations at conferences held in the region as well as in various parts of the world.  He has more than 40 publications in journals, book chapters and conference proceedings.  His publications appear in regional and international journals.  Presently, he is involved in conducting a range of professional development courses for pre-service and in-service mathematics teachers as well as Heads of Department at primary and secondary levels.  He is also teaching the Master programme course on Singapore Primary School Mathematics.  He was the Treasurer of the Association of Mathematics Educators from July 2016 - July 2018.