Mr. Stuart Udell served as Chief Executive Officer at Achieve3000. He is also an Angel Investor. He served as Chief Executive Officer at K12. He has significant strategic and operational experience in K12 in the education industry. Most recently, Mr. Udell served as Executive Chairman (from 2015-2016) and Chief Executive Officer (from 2010-2016), of Catapult Learning, LLC, a privately-held provider of instructional services, professional development, and operator of schools. Prior to joining Catapult Learning, from 2009-to 2010, he was the President of Postsecondary Education at The Princeton Review. He was concurrent, from 2007-to 2010, the Chief Executive Officer of Penn Foster Inc., a global leader in high school and career-focused online learning, which was acquired by The Princeton Review. He spent 11 years at Kaplan, most recently as President of Kaplan K12 Learning Services (from 2002-2007), where he built the K-12 school division. From 1997-to 2001, he was President of the School Renaissance Institute, the training, publishing and research subsidiary of Renaissance Learning Inc. He has served the last 13 years on the board of directors of the National Dropout Prevention Center/Network at Clemson University. Mr. Udell holds an MBA from Columbia University and a BS from Bucknell University.