【Basic Skills Training】 SAPIX's Basic Skills Training series is specifically designed for elementary school students and contains content to solidify the foundation of learning. - Brand: SAPIX - Number of books: 4th grade, February to January, a total of 12 books for one year - Training content: Basic Skills Training - Target grade level: 4th grade - Format: Workbook Thank you for viewing. This is the 2025 edition, 12 books for one year. Answers are included at the end of the book. The January issue was just obtained last week. Since the child brought it home, there are some corner scuffs and folds on the surface, but there is no major damage. The areas where the child's name was written have been erased. We will not be using these at home, so the problem sections have not been used. We have not made copies or solved them while looking at them, so the contents are unused and there are no markings at all. For those who wish, as a bonus, 3rd grade Kanji Training with answers, 3rd grade Math Division Handbook (copy) will be included, so please let us know in the comments after purchase. Please understand that there may be some oversights due to the nature of children's educational materials.