Relevant to all principals and teachers, specifically those teachers who are responsible for library resource collections, this statement is designed to outline the role of teacher librarians in government secondary schools in Western Australia and to show how their original role of resource provision and management can be extended to meet the changing patterns of teaching and learning. Terminology used in the paper is defined, and the rationale behind this definition of the role of the teacher librarian in the educational process is explained. Discussions of the process by which the teacher librarian, a staff member who functions in a teaching role with a library-related specialization, becomes a full partner in the students' experience of learning include (1) the educational and administrative components of the role of the teacher librarian; (2) the understanding and support that principals can provide to ensure the successful integration of the library resource center (LRC) program; and (3) the support that teachers can provide to meet the individual learning needs and information requirements of students. Sixteen references are provided. (KM)