How can a "Real" Montessori Classroom be Identified?

Since Montessori is a word in the public domain, it is possible for any individual or institution to claim to be Montessori. But, an authentic Montessori classroom must have these basic characteristics: Teachers educated in the Montessori philosophy and methodology for the age level they are teaching, who have the ability and dedication to put the key concepts into practice. A partnership established with the family. The family is considered an integral part of the individual's total development. A multi-aged, multi-graded heterogeneous grouping of students. A diverse set of Montessori materials, activities and experiences, which are designed to foster physical, intellectual, creative and social independence. A schedule which allows large blocks of time to problem-solve, to see connections in knowledge and to create new ideas. A classroom atmosphere, which encourages social interaction for cooperative learning, peer teaching and emotional development.