Welcome to Mathnasium of Flemington

Excellent program

chiragkumar patel

My daughter really loves going to Mathnasium. She was hesitant when I first signed her up for tutoring, but no...

Anna Hillmann
mobile version of sandcastle image

Summer Programs

Make Mathnasium Part of Your Summer Plans.

July's Double Up Special

Sign up for a Mathnasium program before July 31st and receive December for half price! Contact us for details ands schedule a Free Assessment and learn more about our program.

Schedule Free Assessment

Contact us


  • 276 Route US-202/31, #110 (next to the Basil Bandwagon Natural Market)
  • Flemington, NJ 08822
  • Call (908) 336-2841
  • Text (908)-336-2841

Hours of Operation

Instructional Hours

Monday 3:00PM - 7:00PM
Tuesday 3:00PM - 7:00PM
Wednesday 10:00AM - 12:00PM & 3:00PM - 7:00PM
Thursday 3:00PM - 7:00PM
Friday 10:00AM - 1:00PM

Office Hours

9:00AM - 7:00PM
View All Hours arrow

Already enrolled?

Log in

I'm Gabbi, the owner of Mathnasium of Flemington! I am very passionate about teaching students math in a way that makes sense to them. Everyone can be a math person with the right tools and support. I can't wait to be apart of your student's math journey by making math fun, engaging, and exciting!

We specialize in math-only instruction with a focused, caring, and fun learning approach that delivers results.
We proudly serve local communities and schools, including:

  • Hunterdon Central Regional High School
  • Reading Fleming Intermediate School
  • JP Case Middle School
  • Barley Sheaf School
  • Robert Hunter
  • North Hunterdon Regional High School
  • Copper Hill Elementary School

Dedicated to providing the best instruction

Our instructors are enthusiastic about math and specially trained in the Mathnasium Method. They create a caring and encouraging environment where your child will learn and thrive!

Meet the Team gallery1

Instructor Spotlight

Gabbi Flachs
My name is Gabbi and I am the owner and center director at Mathnasium of Flemington. I make it my goal to ensure that students have an effective, engaging and encouraging learning experience that cultivates an intuitive understanding of math. I do this by selecting highly trained instructors who are(...)



One-on-One Assessment

Our unique assessment pinpoints what each child already knows and what they still need to learn.


Customized Learning Plan & Goals

Our detailed plan takes your child step-by-step from where they are to where they need to go.


The Mathnasium Method™

Our proprietary curriculum and teaching method fosters skills that take hold and build upon one another.

Latest News & Posts

September Fun Days at Center

Aug 30, 2018 | Flemington

Did you know September 4th is "National Eat an Extra Dessert Day"! Check out the other fun days we have planned! ..

Finish the Pattern...

Aug 2, 2018 | Flemington

Being able to recognize and work with patterns is an important foundational math skill. Often learned in elementary school, pattern recognition helps us observe and make predictions based on those observations. Furthermore, a strong understanding of p..

Find out how Mathnasium will work for your child

Answer a few questions to learn more

My child is...


Have questions? Contact us.

By clicking "Submit," you agree to receive recurring advertising emails, text messages and calls from Mathnasium and its independently owned learning centers about our offerings to the phone number/email provided above, including calls and texts placed using an automatic telephone dialing system. Consent to receive advertising text messages and calls is not required to purchase goods or services. Message frequency varies. Message and data rates may apply. Reply STOP to no longer receive messages. Email [email protected] for assistance. By clicking "Submit," you also consent to Mathnasium's Terms and Conditions of Use and Privacy Policy.

"Marguerite at the Flemington, NJ location is phenomenal! Her patience, skill and professionalism helped my son and I tremendously. We've learned so much from her! "

— E.G.


276 Route US-202/31, #110 (next to the Basil Bandwagon Natural Market)

Flemington, NJ 08822

United States