1. Introduction
What is Problem-Based Learning (PBL)? PBL is an education approach that starts at the McMaster University in the 1960s and subsequently has been expanded to North America and elsewhere in the world (Albanese & Mitchell, 1993). It has been well accepted in the medical field with more than 82% of medical schools in the United States using the PBL approach for teaching basic science to a variety of degrees offered (Jonas et al. 1989). Further, it has been applied in various disciplines including business, education, architecture, law, engineering and social work (Savery & Duffy, 1995).
Currently environment and sustainable development is an important curricular component in higher education which aims to create human capital that meets the needs of the job market and works to preserve the earth’s finite resources. It covers all areas of education. Malaysia needs engineers, scientists, and those who are experts in various