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Ms. Mary


Ms. Mary is Director & Founder of Casa de Montessori. She was Lead Guide in the Children's House classroom for over ten years before stepping out to focus on program administration. Ms. Mary also serves as a Mentor Teacher for upcoming Montessorians. She entered the Montessori world as a young mother seeking the best learning environment for her eldest son, Michael. Casa de Montessori was created as the dream school she would have wanted her own three children to be afforded. 

Ms. Mary holds both an American Montessori Society Early Childhood teaching credential and a Bachelors Degree Cum Laude in Human Services. She was a former City of Phoenix Social Worker who has a passion for helping the whole family entity to best support a child's growth.

Ms. Mary is currently pursuing her Masters in Program Administration. She is of Guatemalan descent and has shared the last 25 years with her number one supporter & husband, Richard. She enjoys nature, traveling, running, delicious meals she doesn't have to cook, and concert going with her kids and husband.

Ms. Esthefania serves as a along time friend of Ms. Mary's. They met ten years ago when Ms. Mary was searching for an assistant teacher to support her in a new toddler classroom at another local Montessori school. They formed a strong connection, like a classroom marriage, and have been an amazing team ever since. Ms. Esthefania is a passionate, kind, and joyous teacher. She holds an NAMC Montessori teacher credential and alongside her husband are raising a beautiful son, Iker. She loves reading, baking, dancing, rooting for the AZ Cardinals, and panda bears. Ms. Esthefania adores her beloved family including those who still reside in her native town of Hidalgo, Mexico and enjoys all their native cuisine.
Ms. Esthefania add so much laughter, culture, and school spirit to Casa de Montessori. The children love to call her "Nia." 

Maestra Esthefania
Toddler House Lead Teacher

Ms. Mariah
Children's House Lead Teacher


Ms. Mariah began at Casa de Montessori as a summer camp assistant in 2021 and is currently completing her AMS Montessori Early Childhood teaching credential. Ms. Mariah is gifted in all she does and has a strong passion for Math and ASL. She is a natural, calm teacher who is able to create strong connections and boundaries for her students.
Ms. Mariah is a born leader and fully dedicated to creating a rich learning environment for her nephews, nieces, and the students she guides each day. Ms. Mariah is of Mexican descent and loves sushi & Mexican food. She also loves music, the arts, sewing, thrifting, and her cats. Ms. Mariah is eager to continue to enrich the classroom as she nears completion of her teacher education program by incorporating all her creative, innovative, and fresh ideas.

Ms. Ruby started with Casa de Montessori approximately four years ago as a summer camp assistant. Ms. Ruby currently works as a full time assistant in the Toddler House classroom and in the Extended Care program.
Ms. Ruby states CDM really helped her see young children in a different light and loves being with them. She is a natural, patient, and nurturing teacher. Every child and teacher loves Ms. Ruby because she is a great communicator, accountable, resourceful, and kind.
Ms. Ruby loves to root for the Raiders, watch movies, care for her bearded dragon-Panchito, traveling, and creating art.  

Ms. Ruby
Toddler House Assistant Teacher


Ms. Maria is from Sonora, Mexico and holds a degree in Educational Psychology. She is also the proud mother of Sofia, a Toddler House student.
Ms. Maria loves to bake, travel, and is an incredibly loving and patient teacher. Everyone loves her sweet and hard working demeanor.

We are lucky to have her as one of our Children's House Spanish Speaking Assistants.

Ms. Maria
Children's House Assistant Teacher
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