Welcome to Mathnasium of South County

Friendliest staff that genuinely care about my son.

S.H.

We really like the manager who is so professional and kind. My daughter is learning here.

P.U.
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Summer Programs

Make Mathnasium Part of Your Summer Plans.

Make Mathnasium part of your Summer

Now is the time to get Mathnasium on your summer schedule. Summer at Mathnasium is a fun and engaging way for your child to keep up their math skills and prepare for the school year ahead: • Free assessment -> Individualized Learning Plan • Live, face-to-face instruction • A proven teaching method that results in true understanding and increased confidence.

Schedule Free Assessment

Contact us

South County

  • 38 Ronnie's Plaza
  • St. Louis, MO 63126
  • Call (314) 270-3891

Hours of Operation

Instructional Hours

Mon-Thurs 3:00PM - 7:00PM
Sun 1:00PM - 5:00PM

Office Hours

Mon-Thurs
10:00AM - 3:00PM
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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:

  • Sappington Elementary School
  • Holy Cross Academy
  • Assumption Parish School
  • Thomas Jefferson School
  • Lindbergh High School
  • Home School Families

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!

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Instructor Spotlight

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Hope
Hope is an ambitious and goal-driven individual currently studying Biochemical Engineering at the University of North Alabama. With a passion for fitness, community building, and problem-solving, she is eager to bring her diverse skill set to benefit the Mathnasium community. During her time at t(...)

SCHEDULE YOUR MATHNASIUM ASSESSMENT TODAY

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One-on-One Assessment

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

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Customized Learning Plan & Goals

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

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The Mathnasium Method™

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

Latest News & Posts

Student of the Month - May

Jun 11, 2024 | South County

Teacher Appreciation

May 13, 2024 | South County

Find out how Mathnasium will work for your child

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"My son currently has an A+ in eighth-grade math. He went from good at math to great – and far more interested. The instructors here are fabulous! Everyone is so welcoming and it is a very comfortable learning environment. *Please use first name and last initial (vs name). Thank you."

— M.M.

South County

38 Ronnie's Plaza

St. Louis, MO 63126

United States