Research has established that traditional linear, didactic approaches to teaching through lecturing are at best only tenuously connected to the ultimate aim of achieving competency. In order for classroom instruction to become relevant and meaningful, the process of learning must be motivating and exciting, and the basis of learning should be focused on discovering and not memorizing or regurgitation. We believe a guided discovery process is the most effective way to convert a passive classroom lecture into an engaging active learning experience. Scenario Based Learning (SBL) is an effective approach that provides an excellent framework for active learning. It offers an effective way of engaging learners and building competency mastery. This paper describes the initiatives currently underway at Cal Poly Pomona to develop and implement SBL approach to teach major concepts in basic freshmen and sophomore level engineering courses.