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The Faculty of Engineering at Dalhousie University offers a common introductory course that covers the basic principles of thermodynamics and fluid mechanics in a unified manner. This introductory course is a mandatory part of the curriculum for all engineering programs offered at Dalhousie. In this course, students are required to perform six laboratory experiments, and since 2012 students have also completed short, four-week design projects.The short design project helps students to acquire more of the graduate attributes defined by the Canadian Engineering Accreditation Board (CEAB), including design, communication, and team work skills. They also provide students with a well-deserved break from purely theoretical work in lectures and tutorials, and a chance to develop some hands-on abilities.This paper describes the lessons learned from the last three design projects, which were focused on modifications to a Ranque-Hilsch vortex tube, design of a pop-pop boat, and design of a double pipe heat exchanger. The primary challenges have been the limited engineering design experience possessed by students in their third semester of studies, the heavy workload that second-year engineering students already have, and the relatively large class size. Even though there are clear challenges related to integrating a design project into a large second-year class, the results seem to indicate that these design projects provide a positive learning experience for the students.

The impact of cognitive mode diversity on team performance and student satisfaction was assessed qualitatively and quantitatively in a capstone chemical engineering design course. In the capstone design course, students were permitted to form their own teams and the distribution of cognitive modes was assessed. In a concurrent design course, the same group of students performed projects in instructor-formed teams that optimized the distribution of cognitive modes. The results indicated no significant difference in team satisfaction between teams that had different levels of cognitive diversity. Although trends seemed to indicate higher rank in the course and greater independence and creativity for groups with higher cognitive diversity, these differences were not statistically significant. Generally, students seemed to have similar experiences in student-formed and instructor-formed groups. However, qualitative comments seem to indicate that groups may have worked more professionally and cohesively in the more cognitively-diverse, instructor-formed groups.

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