Alternative education in Canada stems from two philosophical educational points of view, Progressive and Libertarian.[7] According to Levin, 2006 the term "alternative" was adopted partly to distinguish these schools from the independent, parent-student-teacher-run "free" schools that preceded them (and from which some of the schools actually evolved) and to emphasize the boards' commitment to options within the public school system. Progressive educational tradition places emphasis on both the need to incorporate curriculum and teaching to match the stages of child development and the gradual integration of the child into adult society through planned experiential learning. The sources of stimulus would be from the philosopher John Dewey in the United States, from post WW1 New Schools in Great Britain and the Steiner/Waldorf schools in Europe.