S.M.
I am a HUGE supporter of Montessori education and think it is one of the best methods of instructing the whole child - academic, social, emotional. My 6 year old just finished her thrid primary year and is about to start 1st grade. Absolutely love it!
Here in VA , they are all private schools and yes they cost quite a bit more. I can't speak to your location. Some public schools have Montessori teaching styles and I so wish our's did. Our school experience was that the kid wer eenrolled 5 days per week but mornings only. Ratio was fantasitic - 18-22 students aged 3-6 with a lead teacher and an asistent and 9 kids and 3 teachers in her kindergarten class. Quick explanation: she went to her primary class for about three hours every morning for three years. In the last year she stayed for "kindergarten only " activities until 3.
I will say however, I htink the accent thing seems like sort of a odd reason to move your child. Many of my daughter's teacher's were not native speakers - kids are adaptable. And i actually think it was good fo her to see such diversity in people's cultures and experience here in America.
Montessori school's encourage "observation.".Go sit in the classroom and watch a class and how it works. Also ask the teachers to giv eyou "a lesson" where they show you haw to use the learning materials so you can see how they facilitate learning and progress with the child's age. I htin a lot of people misunderstand the montesori method and experiencing it is an easy and fun way to see wha tit has to offer.