This is a set of 9 "Waku Waku Science Book" textbooks from the 2019 "Challenge 1st Grade" curriculum. Compared to my younger child's 2024 edition, these books are sturdier and have more pages. There are some areas with writing. There are no additional supplements that came separately. There are almost no paper supplements inside the books, but I have included images of the ones that remained. I think they are also useful as reading material, so I hope someone can make good use of them.