MS 51 William Alexander Middle School
Learning Begins With Us
MS 51 is a welcoming, diverse, and inclusive school with a community committed to ensuring all children feel supported and successful at this pivotal moment in their lives. Our curriculum, focused on challenging academics, an extensive study of the arts, and social-emotional learning, supports all students while they grow in their knowledge of themselves, one another, and the world.
First Day of School Procedures
We want all who walk through our doors to feel safe, valued, and capable and to leave here understanding their experiences matter, they have a voice, and that they can use that voice to be aware and productive citizens in an ever-changing world.
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MS 51 at a Glance
Located in the heart of Park Slope, Brooklyn, we are a parkside campus that occupies the entire school building.
SHSAT PREP
for 8th graders will begin on Saturday, September 30 at 9:00 am. Express interest using this link or register using the following forms ENGLISH SPANISH CHINESE
SY’24 Citywide HS Fair Flyer – English (1)SY’24 Citywide HS Fair Flyer – Spanish (1)SY’24 Citywide HS Fair Flyer – Chinese (1)

MS 51 Highlights
Studio Program
Students are immersed in a talent for three years. They gather twice weekly for double periods, preparing them for admission in the most competitive, top performing, arts high schools in NYC.
After School Programs and Academic Support
From film study to debate club, robotics to basketball—we offer a wide range of after school activities, including additional academic support and test prep.
Strong Parent Involvement
The Parent Association and Diversity-Unity-Equity-Team (DUET) actively participate in making MS 51 a supportive community for everyone.
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