Celestin Freinet was active in the first half of the 20th century in France, where he addressed the educational issues of the day: class size, lack of adequate pedagogical material, arbitrarily rotating the teachers from school to school without their consent, and forcing the teachers to abide by antiquated guidelines. He initiated and developed printing in the classroom and interscholastic exchanges as a means of giving students a greater voice in their education. During his lifetime not only were his educational ideas controversial, but his pedagogical ideas were strongly influenced by other educators and by Communism. Freinet changed education in France. A great many countries in Europe, Africa and Latin America were also influenced by Freinet. Unfortunately, he is practically unknown in the English-speaking world.