Designed to help kids prepare for the next school year while allowing them to enjoy their summer vacation. Short lessons are presented in a daily schedule for 8 weeks. The Mondayâ€"Thursday lessons cover a variety of grade-appropriate subjects. Friday"s lessons are fun, brain-teasing kinds of activities. All of the lessons can be done in about 30 minutes, leaving children with plenty of time for play. Each book includes over 300 stickers that can be used to track progress and reward good work. Reference Book Type: Supplementary Material; Subjects: Reading, Writing, Math; Age Recommendation: Kindergarten.