In January 2014 the departments of Physics, Chemistry, Mathematics, EEB, and MCDB all came together to create a new system of support for evidence-based teaching in our introductory courses. Seeded by a three-year NSF grant, the REBUILD project (Researching Evidence Based Undergraduate Instructional and Learning Developments) brings together a dozen senior faculty and a large group of postdocs, graduate students, and undergrads. Instructional teams in each department are analyzing data about prior student performance, investigating new methods for engaged learning, and supporting instructors working to improve their courses. To make sure everyone remains involved in this process, members of the REBUILD committee will be delivering seminars in all five departments once a semester for the next several years. This inaugural REBUILD seminar will begin with an introduction to the project, followed by some details of the work going on in the Program in Biology, especially focusing on the introductory biology courses and the 200/300-level gateway courses for the majors.