Dan Callahan is an award-winning educator in professional development and instructional technology. He currently works as a Training & Professional Learning Specialist for the Massachusetts Teachers Association, where he creates professional learning experiences for its 113,000 members. He also teaches as an adjunct faculty member at Antioch University New England, where he designed the curriculum for the Educational Technology Graduate Program for working teachers. A co-founder of the Edcamp movement of unconferences, Dan served as the first Chair of the Board of Directors for the Edcamp Foundation. Dan previously taught in Upper Darby School District, PA, as a Special Educator, and Burlington Public Schools, MA, as an Instructional Technology Specialist. He has lead dozens of workshops at conferences including ISTE, AASL, ATIA, NWP Annual Meeting, EduCon, and many regional conferences. Dan was honored with an Impact Award by the Academy of Education Arts and Sciences in 2013, the MassCUE Pathfinder Award in 2014, and as an ASCD Emerging Leader in 2015. He blogs at http://dancallahan.net and tweets as @dancallahan.