Welcome to Mathnasium of Owasso

My son no longer hates math and feels so much more confident with it!

Stacy Armstrong

Has help my daughter be confident in math!

Jessica Malilong

Save on Summer!

Sign up for a Mathnasium Summer this June and you can save $75 on your enrollment fee! Contact us to learn more.

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Contact us


  • 12414 East 86th St N
  • Owasso, OK 74055
  • Call (918) 574-2222 Ext. 3

Hours of Operation

Instructional Hours

In-Center _______________
Sun 1:00PM - 5:00PM
Mon - Thurs 2:00PM - 7:00PM
Online _______________
Sun 2:00PM - 5:00PM
Mon - Thurs 2:00PM - 7:00PM
Fri 2:00PM - 5:00PM

Office Hours

12:00PM - 5:00PM
Mon - Thu
11:30AM - 7:00PM
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Hello. I'm Celeste Moss, Center Director of Mathnasium of Owasso, your neighborhood math-only learning center. We Provide proven, effective, and FUN (yes, kids love learning math here) math tutoring to students in elementary, middle school, and high school. Serving Owasso, Pryor, Claremore, Collinsville, & Catoosa areas.

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:

  • Owasso Public School District
  • Pryor
  • Claremore
  • Collinsville
  • Catoosa

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

Christine is an instructor in Tulsa Tech's Pre-Engineering program. Previously, she taught advanced math classes at Owasso High School for eleven years. Christine graduated from Northwestern University in Evanston, IL with a degree in chemical engineering. After working for a time in the engineerin(...)



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

Meet Flat Ace

Jun 1, 2024 | Owasso

Have you met our travel-sized mascot, Flat Ace? They would love to join your family this summer as you go on vacation, travel to see family, or even play in the backyard; no adventure is too small!

Defeat the Summer Slide: Empower Your Child’s Math Journey

May 31, 2024 | Owasso

Tick, tock! The clock is ticking, and the notorious "Summer Slide" is lurking around the corner. A Summer Math Program will help you defeat the Summer Slide while empowering your child to take control of their own math journey!

Find out how Mathnasium will work for your child

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"We are very pleased with the progress our son has made at Mathnasium! Celeste does a fabulous job and has some amazing tutors as well. My son also enjoys going and the competitions and rewards work wonders in motivating him to excel!"

— Jamie Keith


12414 East 86th St N

Owasso, OK 74055

United States