For older preschoolers. These materials, numbered 1-10, were used at kindergarten. The "plus" materials were received during summer vacation and not used. Some have children's writing on the paper. All items are marked with names and stamps. All include teaching guides. Please refrain from purchasing if you are overly concerned about details. Please refrain from making minor complaints after purchase. Early childhood education, home learning materials, correspondence education, educational toys, entrance exam preparation.