This preparation program has 3 goals: (a) to increase the number of fully qualified teachers, especially those from underrepresented groups, to teach infants, toddlers, and preschoolers with severe disabilities; (b) to put supports in place to ensure retention of these teachers in early intervention and early childhood (EI/EC) special education programs; and (c) to prepare teachers who are capable of meeting the needs of those young children who are most challenging to the EI/EC special education systems. The project will recruit prospective students who more closely represent the U.S. population and recruit and support community-based mentors who will be matched with students. A collaborative seminar will be developed, combined with fieldwork focused on home visiting and child care center visits. The seminar will be a forum for serious discussion of problems of practice through case-based problem solving. Online modules will be developed to provide accessible, up-to-date information on evidence-based practices for young children with disabilities. The project will review and refine all coursework with attention to collaboration, children with autism and challenging behaviors, and cultural and linguistic diversity. Finally, the project will develop a continuing support network for students and mentors to sustain and strengthen teachers as they begin their careers.