Bridges is opening their newest location at Gilbert and Ray. Its not necessarily Montessori, but it is family owned and this is their 3rd location. If you're looking for a great education experience for your preschooler, I highly recommend Bridges. My daughter attended last school year when she just turned 3, and boy have I seen some amazing growth in her. Her teacher, Mrs. Diana, was so wonderful.
Here's an excerpt from their website: BRiDGES Children love their school because it's safe, comfortable, respectful, and educationally rich. Our hands-on, hands-in programs include science experiments, cooking projects, and gardening activities. We integrate primary Spanish and Sign Language, music and movement, children's literature, zoo phonics, dramatic play, story time, and ample outside time on our Adventure Playgrounds. We model and teach appropriate social skills, communication skills, discipline, assertiveness training, and problem solving skills.
www.Bridgespreschool.com
Good luck.