In 2000, J.Wesley Baker published a paper entitled "Classroom Flipping: Using Online Course Management Tools" at the1/international conference on university teaching, which became a guide.
In 2007, Jonathan Bogman and Aaron sams, a chemistry teacher at Woodland Park High School in Colorado, USA, adopted the "flip classroom" teaching model in the classroom, and popularized it in American primary and secondary education. With the development and popularization of the Internet, the method of flipping classrooms has gradually become popular and controversial in the United States.