"""STEM content on simple machines and robotics meets play and compassion. . . a friend to STEM elementary educators"" — Kirkus Reviews" A STEM singalong that young makers will love. Join a diverse group of budding minds and their friend Robot as they work together to build a treehouse! Designed to ignite interest in STEM — the integration of science, technology, engineering and math — this fact-packed singalong introduces kids to simple machines, social-emotional concepts like empathy and teamwork, and the basics of robotics and programming with 6 pages of educational notes. Includes QR code access to audio and video animation. Norma Jean Wright''s powerful vocals make this revamp of "London Bridge is Falling Down" a dynamic delight.