Get Ready 4 Kindergarten’s Birthday Box, Celebrate with Shapes! is jam packed with family fun and learning! It all starts with Eric Carle’s book, "The Secret Birthday Message". We’ve included multiple hands-on activities for you to have hours of family fun (like the shape Treasure Hunt) while you teach your preschooler the basic shapes! Box + Family Time = Happy Birthday Memories! All GR4K programs engage parents and preschoolers in active family learning without worksheets or added screen time.