The purpose of this study is to explore reasonable alternatives of teaching & learning materials, and research the actual conditions of using the materials, based on a teacher survey. To achieve the research objectives, the textbook policies were analyzed, and a survey was carried out regarding utilization and satisfaction of teaching & learning materials used at schools. The results of the study are as follows. First, frequently utilized are teaching & learning materials except for textbooks, such as digital contents, teachers' own materials, teacher's instructions, publishers' freely offered materials, reference books, exercise books, and professional books. Second, as for the satisfaction of the textbooks used in schools, the highest satisfaction was found in 'learning effect of the various materials', followed by 'including proper learning activities' and 'textbook difficulty'. On the other hand, satisfaction in 'amount of textbook contents', 'ease of students' self-directed learning', and 'student' self-assessment method presented' were comparatively low. Third, desirable textbooks should be more easily understood, facilitate students’ self-directed learning, and keep students interested in the lessons. This study shows that the currently used textbooks do not meet the demand required by customers in terms of the quality and the quantity. Therefore publishers and educational authorities should meet requirements through the improvement of textbooks.