Teacher education is being challenged in the last decades on every front by fundamental changes in the concepts about the nature of knowledge, the phenomenal speed at which knowledge is created, the emerging knowledge- driven economy, the paradigm shift in the theories of learning, rapid developments in the information technology and globalization. In the turmoil, the teachers are being held accountable for the failure of schooling and teacher education held accountable for the quality of teachers. From the positive perspective, teachers are being regarded as the key change agent in the education reform and reform of teacher education is seen by the policy makers and educators as mandatory for the nation to face up the many challenges in the new century. Thus, there are compelling reasons for teachers to approach a ‘culture of innovation’ from the perspective of the knowledge economy, that is, to see innovation as a driving force for the kinds of knowledge needed in the knowledge society. The present paper highlights the constructivism approach of teaching learning process.