Waseda Academy Science, 5th Grade Advanced Practice Workbook, Volume 1: 1 book, Answer Key: 1 book Total: 4 books. Names will be erased or cut out before shipping. Workbooks: There is writing in them, as they were submitted as homework. Answer Key: Generally, there is no writing. These books were used at the cram school, so please purchase if you don't mind minor imperfections. For students graduating in 2026.