This category contains pages and other resources that go beyond the "classical" Montessori resources but still are strongly linked to a montessori environment. A "classic Montessori" resource would be one described or at least mentioned in Dr. Maria Montessori's writing. Since this distinction is not always obvious, for an outstanding review of what "classic" means, and how some divergences are accepted in our age, see Lillard survey 2011
See also Category:Montessori classic resources (link below), for a semi-antonymous list. Because there exists some middle room, it might sound contradictory but still necessary to, sometimes, have some item belong to both.