30+ August Preschool Themes with Lesson Plans and Activities. Hands-on activities to do in the summer, hundreds of preschool themes for the year, list of themes for preschool, preschool themes for August, August themes for toddlers, preschoolers, and kindergarten, preschool activities for science, preschool math, preschool crafts, ocean, back to school, all about me, mermaids, sunflowers, and more.