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Seneca Middle School

850 Main Street
Holbrook, NY 11741
Principal: Gemma M. Salvia
Assistant Principal: Denise Dolan
Assistant Principal: William Holl
Phone: (631) 471-1850


Be Kind. Be Honest. Be Humble. Be your Best.

Principal's Letter - Quarter I


PRISTINE - completely free from dirt or contamination

The dolls in my collection are in a pristine state because I have never taken them out of their boxes.

November Club Dates


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Help fill this plate for someone who is hungry!

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As our 7th grade service learning project, students enrolled in Family Consumer Science this semester are working together to make a difference and find ways to aid in fighting world hunger. October is WORLD FOOD MONTH. Seventh graders are selling paper plates to decorate during their lunch period for $1.00. We would love your support! Students can visit the table during lunch and decorate a plate for $1. The sale will continue for the month of October Please support us to take a stand against hunger. One person can make a difference!

Dr. Levana Cohen (professional musician, college professor, and Vandoren Regional artist) hosted two master classes for our band students today.





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Grade 6 – Mrs. Kay and
Mrs. Schultze

Grade 7 – Ms. Ward
Grade 8 – Mrs. Michta


Transitioning to Middle School Information

Upcoming Events

Wednesday, October 25 - Safe Halloween - 3:30pm-5:00pm
Wednesday, October 25 - Unity Day - wear orange
Monday, October 30 - Grade 8 Assembly
Tuesday, October 31 - Halloween - students may wear costumes - please refer to the letter sent home regarding appropriate and acceptable costumes
Wednesday, November 1 - No Homework Day - Please spend time with family and friends doing things together
Monday, November 6 - Early Winter Sports begin
Tuesday, November 7 - Election Day - School closed for students
Friday, November 10 - Veterans' Day - School Closed
Monday, November 13 - End of Quarter I
Tuesday, November 14 - PTA meeting - Seneca library - 7pm
Wednesday, November 15 - Internet Safety Presentation for all students
Wednesday, November 15 - Turkey Trot- 2:30pm -3:30pm
Wednesday, November 15 - Empty Bowl Dinner - 3:30pm-5:00pm
Wednesday, November 15 - Internet Safety Presentation for Parents - 7pm - Little Theatre
Friday, November 17 - Report Cards posted to the portal after 3pm
Monday, November 20 - National Junior Honor Society Induction Ceremony - 7pm
Thursday, November 23/Friday, November 24 - Thanksgiving - School Closed

Turkey Trot Flyer

Students Who Make a Difference at Seneca

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Seneca's Newspaper is here!


Click here for information!



Just a reminder, students will not be released to anyone if the person is not listed on the emergency card.
If changes need to be made on the card, please send in a revised one in to the main office. Thank you!



Mission Statement

The Seneca Middle School community will foster the intellectual, emotional, and physical growth of every child
by developing a positive self-image, a strong desire for learning, and a sense of respect for self and others.
We will accomplish this by providing a challenging curriculum in a safe and supportive atmosphere,
as our children mature into productive citizens.




Follow us on Twitter @SachemSenecaMS
Like us on Facebook @ Seneca Middle School - authorized
Follow us on Instagram @ seneca_ms


In the News

Seneca Students Make Marble Mazes

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Students in Michael Lundstrom’s technology class at Seneca Middle School used innovative thinking as they faced design challenges in creating marble mazes, racing the clock to reach a designated goal time of eight seconds. 

Seventh-grade students in Mr. Lundstrom’s technology class focused on the engineering design process as they embarked on the challenges of navigating a marble through a maze, meeting the time constraints allowed. Supplied with cardboard from cereal boxes, students assembled the mazes, weaving the marble throughout their creations to reach its destination. The only factor aiding the marble in its descent was gravity. 

During the project, the students learned a number of lessons beyond the engineering skill acquired. These included the concept of design ethics and the importance of attributing credit for components found in others’ designs while conducting research. Additionally, self-refection was emphasized during the testing phase, which required students to recognize design failures and the need to create functional solutions that successfully completed their goals.  

Inspirational Author Visit

Inspirational Author Visit photo

Literacy came alive for sixth-grade students from Sagamore and Seneca middle schools when they enjoyed an inspiring day with author and illustrator George O’Connor.

During two separate assembly programs, Mr. O’Connor spoke of his experiences as a student and what sparked his interest to pursue the career he excels at today. He also walked the students through his Greek mythology-based book series, “Olympians,” providing students with valuable illustrating tips and techniques. Concluding his presentations, Mr. O’Connor showcased his quick drawing style during an impressive 25-second drawing demonstration of Greek god Zeus.  

As an added treat, those students who participated in the Sachem Public Library Summer Reading Program had the chance to eat breakfast (Seneca) or lunch (Sagamore) with O’Connor and engage in a small-group question-and-answer session.

Upcoming Events