The Water Seesaw will fascinate children and invite hours and hours of construction play. The Water Seesaw is a fine transporter of water and sand, leading materials from one end to the other when inclined. This trains children's construction play skills as well as their logical thinking. Adding transportation of materials to sand-and-water play has always been a popular attraction. Children can learn to shift materials through the long tube while playing in larger groups together. This trains cooperation, negotiation and turn-taking skills, all social skills that are hard to teach, but easy to learn in play.