This is a set of teaching materials for Yotsuya Otsuka's "Yosyu Series 'Science Year 4 (Part 1)'". - Yosyu Series Science Year 4 Part 1 - Yosyu Series Science Year 4 Part 1 Answers and Explanations - Practice Problems Book Science Year 4 Part 1 - Practice Problems Book Science Year 4 Part 1 Answers and Explanations This is a set of 4 books in total. Upon a quick check, I found no writing. (Please forgive any oversights.) There was a name written on the back, so I will erase it or cover it with masking tape. You can use these for junior high school entrance exam preparation, home study, advanced learning, etc. [Condition] There is no major damage and the condition is relatively clean, but there are some folds due to use. Please only purchase if you understand that these are used items. [Shipping] Will be shipped with waterproofing. Yotsuya Otsuka Yosyu Series Practice Problems Book Junior High School Entrance Exam Fourth Grade Science Yotsuya Otsuka Materials Cram School Materials Home Study Junior High School Entrance Exam Materials