Original sentence: Because the term 'Montessori' isn't trademarked, and there is no single accrediting body, there is no one single definition that can be associated with a scool having Montessori in its title.There are thousands of schools that label themselves as Montessori schools, either directly or through notations such as 'founded on Montessori principles' or 'Montessori/Waldorf'.These bodies offer accreditions for schools
Edited sentence: Because the term 'Montessori' is in the public domain, and there is no one accrediting body, it can be difficult for parents to distinguish between real and ersatz schools.Schools accredited by these bodies are required to adhere to fundamental Montessori philosophies and can be rightly called Montessori schools.There are thousands of schools that mislabel themselves as Montessori schools, either directly or through misleading notations such as 'founded on Montessori principles' or places claiming to be 'Montessori/Waldorf' when in fact the two philosophies are quite divergent