http://chesterbrookmontessori.org/about/locations.php
has both locations and you can email the director of Rt. 50 Arlington Forest, Lisa Banowit, at
lisabanowit@hotmail.com
or
chesterbrookmontessorischool@hotmail.com
As for "pure Montessori" I believe this is a misnomer, if you have read much of Maria Montessori's works, as I have. So there is no such thing, other than school directors who wish to be extremely inflexible with schedules, materials or timing of school day. At Arlington Forest Campus where our daughter attended 3 years, the proof is in the pudding - reading above age level, outgoing, confident, caring. The tuition difference between Chesterbrook and the others is not based on any kind of superior quality, from what we saw. We are thrilled with the experience on all levels that we had at Chesterbrook.