"Systematic Mathematics 1: Supporting the New Curriculum for Integrated Junior and Senior High School Education" Koji Okabe / Shigeki Kitajima Price: ¥710 + tax This is a textbook used by my child, who is currently a first-year high school student, when they were in the first year of junior high school at a private integrated junior and senior high school. Since their math grades were between 8 and 10 out of 10, I'm offering it as a good luck charm. Please check the images as there are some markings and writing. There is a name written on it, which will be covered with vinyl tape before delivery. Includes a separate volume of answers."