These de Master de l'annee 1985 dans le domaine Psychologie - Psychologie du developpement, langue: Francais, resume ABSTRACT: This paper on research concerning the class inclusion and the Montessori method includes a brief review of this method for educating preschool-age children, and criticisms leveled against or in favor of it. A review of comparative research studies in relation to the class inclusion problem of Piaget in compararison to Traditional non-Montessori preschool program with middle-class children. The comparative results are discussed in relation to two kinds of preschool...