Aaron Sams is one of the developers of the flipped classroom model for education, which seeks to remove lecture from classroom onto video so that teachers can dedicate class time to more interactive activities and extra help. Sams developed the idea with fellow chemistry teacher Jonathan Bergmann at Woodland Park High School, at first to help students who fell behind and later to completely change the structure of their classes. The popularity of the online videos with both students and those outside their classes has led Sams to speak at conferences and train teachers in the method. He was also awarded the 2009 Presidential Award for Excellence in Math and Science Teaching for his work. Source: Wikipedia (en)