Garrett Park Nursery School
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3's Class Teachers

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Sarah Rubin
Director and 3's Class Teacher

Sarah is the 3’s Class Teacher, as well as the GPNS Edcuational Director helping to develop the school’s play-based academic program and support families. Prior to GPNS, Sarah taught Kindergarten and 1st Grade in Arlington Public Schools. 

As a teacher, Sarah is a lifelong student. “I never stop reading, researching, and finding ways to make early childhood education the best experience it can be.” She enjoys being a part of children’s earliest educational experiences and getting them to think outside the box. Her children also attended co-op nursery schools providing her with invaluable experience.

As the 3’s Class Teacher, Sarah promotes exploration, observation, and play, and she utilizes nature in all ways possible. She holds a Master of Education degree from George Mason University with special interest in Teaching English as a Second Language, Early Childhood Special Education and Early Childhood Education.  
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Martina Cullen
​3's Class Assistant

Martina has been the 3's Class Assistant since 2019.  Her children are also GPNS alumni.  
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Contact Us

Garrett Park Nursery School

4812 Oxford Street | PO Box 314

Garrett Park, MD 20896

301.933.5254

[email protected]

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GPNS is approved by the Maryland State Department of Education and is licensed by the Maryland Office of Child Care.
We are a proud Maryland EXCELS certified program and are authorized to accept Child Care Scholarship vouchers.
Garrett Park Nursery School – Mailing Address: P.O. Box 314, Garrett Park, MD 20896. Physical Address: 4812 Oxford Street, Garrett Park, MD 20896. Phone: 301-933-5254. Email: [email protected]. Serving families in Garrett Park, Bethesda, North Bethesda, White Flint, Rockville, Kensington, Potomac, Silver Spring, Wheaton, Aspen Hill, and Chevy Chase.
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  • Home
  • ABOUT
    • Our Teachers >
      • 2's Class Teachers
      • 3's Class Teachers
      • 4's Class Teachers
    • Gallery
    • What is a Co-Op?
    • Virtual Tour
  • Our Programs
    • 2's
    • 3's
    • 4's
    • Extended Day Program
  • Summer Camp
  • Admissions
  • Support GPNS
  • Contact