My son is in a Montessori kindergarten and will go to public school for first grade (his Montessori does not continue into the elementary grades). I have no clue what Gamma G is talking about - my son's classroom is the most orderly, well behaved one I have ever seen. I actually almost didn't enroll my son because the kids seemed almost too quiet and engrossed in work Then I saw them on the playground and they were clearly normal kids.Our Montessori has had zero staff turnover this year. One senior teacher left between my son's first and second years - she retired (don't see this as a reflection of poorly behaved kids).
My son is doing multiplication, long division, reading well and doing a ton of art and music. I think he will really enjoy his public school (it is one of the highest rated in our state), but I do not think their math and language programs will be comparable. I love that he learns because he is intrigued by a topic, NOT because some teacher assigned spelling words to memorize. I LOVE that the program does NOT have homework, encourages kids to spend their out of school time playing and with their families. I LOVE that family travel is encouraged and that there is ZERO problem when we pull him out to travel or spend time with family. Also - he never gets 'behind' on work, because there is no behind or ahead. That said, he will be way 'ahead' of his classmates when he starts next year.
I LOVE that there are no 'time outs' or 'zero tolerance' policies. The teachers talk to the children who 'misbehave', they don't punish them. The children are encouraged to solve their own interpersonal problems (with appropriate coaching from the teachers). They are not told to share, they are encouraged to work out something they find fair. You may find this in a public school too - the school DS will go to seems very much into positive discipline.
I LOVE the multi age classroom. I really like seeing my son mentor the 3 year olds. I thought it was great last year when the 5-6 year olds would show him how to do a work, or help him with reading.
I dislike the fund raisers (but I hear they have these in public school too). The tuition is quite a bit. I dislike the directress's attitude that the Montessori way is the best way (but I don't see that she has enough interaction with the kids to instill this in them). I dislike that we will change schools next year and that he will be the new kid with a bunch of kids who already know each other. However, there are always kids who move in so I think he well be fine with this.