Furthermore, several studies revealed that Malaysian trainee teachers in the teachers college had demonstrated a poor understanding of mathematical concepts and a lack of mathematical skills (Cheah,2001; Koe, 1992; Ng, 1995). Therefore, there is a need to examine the SMK hold by the pre-service secondary school mathematics teachers. Thus, the researcher intends to examine the pre-service secondary school mathematics teachers' SMK of a specific mathematical topic, namely perimeter and area.