The ability to work with others is a skill highly valued by employers. Students often work in groups for class projects, but extensive teamwork is usually limited. This research explores student attitudes toward working with peers through a "Value of Teams" survey. The relationship of demographic characteristics and initial attitudes, changes in attitudes after a semester in an intensive team-based learning environment, and the enduring effect of attitudes as measured through responses of students enrolled in a second class with the same instructor are all examined.