Computational thinking can provide a basis for problem solving, for making evidence-based decisions, and for learning to code or create programs. Therefore, it is critical that all students across the K-12 continuum--including students in the early grades--have opportunities to begin developing problem solving and computational thinking skills. Although computational thinking is central to computer science, CT skills, such as "abstraction", "problem decomposition", "algorithmic thinking", "pattern recognition", and "debugging" cut across multiple disciplines, promoting seamless integration in science and engineering (Wing 2016). Engineering design can be a context and approach for fostering computational thinking in formal and informal settings for elementary-age children. Through such learning experiences children can develop 21st-century skills vital for success in STEM+CT (science, technology, engineering, and mathematics, computer science) careers. In this article, the authors share an engineering design activity that we employed to engage kindergarten to second-grade students in STEM+CT.