The Montessori School is definitely a different approach to 'regular' school. They have a method of teaching that is very unique to the needs of your child and nothing at all like the age old standard ways of teaching. Known for their very individualized techniques and somewhat 'hippie' like ideals they're known to be very eclectic like in their thinking. They are very "Green" oriented, instilling natural ways and teaching a lot of earth friendly techniques.
Don't be confused, all of this personalized teaching does come at a price but it's not truly much, if any, more expensive than most private schools. With a wonderful student to teacher ratio you can be assured that your child will get individualized help, geared for learning at their own rate. While it's not for everyone, it does appeal to many.