Herbert Kohl was a teacher who taught 6th grade in Harlem in the 1960s. He became interested in advocating for education reform and social justice for poor and minority students. He published several books discussing these issues, including 36 Children which described the stories and challenges faced by the Black children in his classroom. Kohl believed the school system failed students by not adapting to their needs and depriving them of choices. He experimented with more open and progressive teaching methods focused on student interests to try to change the system from within.