This study identified vocational and academic teachers' involvement in and contributions to school-to-work (STW) transition. The Ethnograph software was used to code and group information from interviews with 199 teachers, counselors, administrators, employers, and community members at 11 sites. Ten teacher activities that contribute to STW success were identified: involving students in workplace experiences; helping them understand the workplace; involving workplace representatives in curriculum and instruction; providing workplace experiences for students through school activities; including a workplace focus in instruction; learning about the workplace to improve teaching; working in the workplace; initiating and maintaining contact with employers and the community; designing classroom experiences around workplace expectations; and following up students. Twelve characteristics teachers need to conduct successful STW programs were found: understand and meet students' needs; establish and maintain relationships with the workplace; know the workplace; communicate effectively about STW programs; be adaptable and open to change; demonstrate positive attitudes toward work; be professional in appearance and conduct; apply school learning to the workplace; know schools and schooling; be knowledgeable and competent in teaching area; be creative and innovative in teaching; and be committed to teaching. Implications for target groups were developed. (Appendixes contain 11 references and community profiles.) (YLB)