This is a set of educational materials from Kodomo Challenge. Contents: ・April 2021 - September 2025 issues of Kodomo Challenge Hopp (for children in their 4th year) These materials are perfect for children in their 4th year of school. Please be aware that some of the crafts have been made, and there are some writings inside, as these items have been used and read by a child. These items are in good condition for reading (^^)