This handbook is designed to help teachers create a transition portfolio that will accompany the student with mild to severe disabilities to new classrooms and schools, and convey special needs, accommodations, and other vital information to a new team of teachers. It offers practical details on gathering critical information and tips on what to include, sources, and timelines. The handbook also shows teachers how to collect information on: (1) the student's educational components, including an Individualized Education Program summary sheet, learning style, physical influences, and environmental influences; (2) accommodations to instruction, environment, or materials; (3) medical information; (4) a student's communication style; and (5) positive behavior support plans. The guide also includes a section on how to collect personal information about students, as well as sample mapping sessions. Charts and tables are provided to help teachers develop a successful transition portfolio for students with disabilities. Appendices include three case studies to illustrate the development of a transition portfolio for students transitioning to kindergarten, to middle school, or to a new grade in high school. (Contains 44 references.) (CR)