Nowadays a lot of schools carry out open education and the school libraries have to seek the ways how they can participate efficiently in the instructional design process in the system of open education. For these purposes, a spatial relationship of school library and the process of cooperative program planning and teaching is investigated with a case study. Cooperative program planning and teaching is a school library service program which has to be developed as an instructional program related to classroom teaching. However the tendency is that teacher-librarians are not active to do it in the open education system.