Problem-Based Learning (PBL) has become an increasingly popular method across disciplines in K-12 and higher education worldwide since it was first introduced to medical education in the late 1960’s. However, it has not gained significant popularity in engineering curricula due to the large time-scale needed to solve complex engineering problems. Previous work by the authors in this area has developed a method for combining problem solving opportunities on a small time scale in linked courses that culminate to solve a challenging problem that would normally take a significant amount of class time. This method of problem-based learning provides a practical application that can be used in engineering curricula. While this method has produced favorable response from both students and faculty involved, there is a need for a more comprehensive effort to develop strategies for evaluation of PBL in mathematics, science and engineering courses, both directly and indirectly. In this study, Engineering Statics, Engineering Physics, and Calculus II are linked using PBL to increase both student engagement and success. For smaller problems, group work with directed individual or interactive tasks is facilitated through teacher-guided discussions. Students who are in these linked (co-enrolled) classes work on small mathematics, physics, and engineering problems that are used to solve a challenging engineering problem. The project addresses concepts taught in class, reinforces connections among the courses, and provides real-world applications. A mixed method evaluation approach was utilized by the external evaluators, the West Texas Office of Evaluation and Research (WTER) including surveys, focus groups, and personal interviews.