Three things all preschool playgrounds should have: Beyond factoring in smaller playground equipment, school administrators and public park officials may also want to provide age-appropriate features that stimulate creativity, friendship and educational growth. How can you do this with a couple of slides, a swing set and a few other playground staples? Here are three things that all preschool playgrounds should have. ok 1. Sandbox: If there's one thing that little children go wild for, it's playing in the sand. Supplied with a shovel, buckets and an array of different toys, preschoolers can feel like masters of the universe in a playground sandbox. Not only is this great for letting kids have fun with their friends, but it encourages children to think creatively and build skyscrapers or castles made from packed sand. Whether you just want to have a tiny sandbox in the corner of the play area or cover a larger portion of the playground with sand - also a nice safety feature - t...