Thank you for viewing. [Product Details] This is the textbook and answer key for the winter course used at Yotsuya Otsuka directly-managed schools, which are famous for junior high school entrance exams. (Textbooks and answer keys for two subjects: science and social studies) For 5th graders. This material is only for students enrolled in the winter course and is not sold to the general public, so it is not currently available on the Yotsuya Otsuka website. ❤️ Unused, no writing, and no page folds. - Title: Winter Course Science/Social Studies 5th Grade - Answer Key: Answer Key - Publisher: Yotsuya Otsuka - Series Name: Yosyu Series (Preparation Series) - Grade: 5th Grade I believe you'll want to use it right away, so I will ship it the same day. #YotsuyaOtsuka #JuniorHighSchoolEntranceExam #WinterCourse #YosyuSeries