Douglas F. Haller, Ed. M., has over 20 years of experience in K-12 STEM education. As principal of Haller STEM Education Consulting, he works closely with clients to maximize the efficacy of their STEM education products and programs. Doug specializes in the development and implementation of strategic initiatives to create or expand product lines and programs, curriculum design, and teacher professional development. His expertise combines practical classroom experience with best practices in learning and instruction from work in education research and design. Since leaving the classroom, Doug has consulted on the design, development, and evaluation of numerous award-winning and niche STEM education products and programs. Clients include government organizations government, non-profit, and for-profit education institutions and publishers. Doug holds a Master of Education from the Harvard Graduate School of Education and a Bachelor of Arts in geology from The Colorado College.