Rick Dahlgren is a nationally respected educator, psychologist, behaviorist, and high-energy trainer with over 35 years of experience improving classroom management and student engagement. As CEO of the Center for Teacher Effectiveness, he has developed practical, research-supported strategies that make teaching more effective and manageable.
The author or lead author of seven influential books, Rick has trained and influenced more than 500,000 educators nationwide. He is known for field-tested methods that reduce challenging behaviors, build positive classroom culture, and support even the most hard-to-reach students.
Rick’s trainings are dynamic, motivating, and packed with tools teachers can use immediately. His blend of humor, stories, and deep expertise makes his sessions among the most practical and empowering professional development available.

Senior Master Sergeant (Ret.) Eric Combs is an award-winning educator and nationally recognized trainer committed to effective teaching and safe learning environments. After a distinguished 20-year career in the U.S. Air Force—serving as a Security Forces Superintendent, counter-terrorism instructor, and leader in multiple Special Operations units—Eric transitioned into education through the Troops to Teachers Program.
He began teaching Social Studies in Team Delta, an innovative school-within-a-school program for at-risk teens, where his focus on relationships, classroom culture, and student engagement led to his selection as the 2006 Ohio Teacher of the Year.
Today, Eric trains educators and communities nationwide through the Center for Teacher Effectiveness and the RDPC/All Hazards Training Center at the University of Findlay, specializing in classroom management, student engagement, and school safety.