This guide is a product of the League's Significant Discussions Project, and was created to facilitate discussions between secondary and postsecondary faculty and administrators, and business, industry, and community partners. The Significant Discussions guide is a comprehensive set of tools to assist these partners in their collaborative work to better align curriculum across institutions, thus easing student transitions from high school to community college and university transfer. The guide is based on effective practices in place at nine participating sites and promising practices identified through research. The Significant Discussions Project was supported by a grant from the MetLife Foundation.