This chapter presents criteria for potential contemporary STEM units and the complementary professional learning. The discussion provides a foundation and context for a professional learning institute where teachers actually design and develop units for use in their classrooms. Engaging teachers in the development and subsequent implementation of STEM units will challenge teachers to think differently about learning and teaching STEM. With professional learning experiences, teachers should learn how to use the innovative materials effectively. Teacher background information is included in this book selection, as well as the Table of Contents, Preface, Acknowledgments, About the Author, References, and Index.