Welcome to mathnasium of O'Fallon

My daughter has excelled in math since being here. She enjoys coming after school. She enjoys math now.

P.T.

Great place for children to learn.

James MacBean

No-Risk Assessment

Let's do an assessment and there is no up-front cost and no obligation. This is a great chance to determine your child's math skill and see how your program can help.

Contact Us

Contact us

O'Fallon

  • 210 Hartman Lane #100
  • O'Fallon, IL 62269
  • Call (618) 624-6402

Hours of Operation

Instructional Hours

Mon - Thu 3:00PM - 7:30PM
Fri 3:00PM - 5:30PM
Sun 2:15PM - 5:00PM

Office Hours

Mon - Fri
11:00AM - 7:00PM
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Mathnasium of O'Fallon is closed today, 2/16/24, due to weather.

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Hello. I'm Greg Marston, Center Director of Mathnasium of O'Fallon, your neighborhood math-only learning center. We help kids in grades 1-12 understand math by teaching the way that makes sense to them.

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:

  • O'Fallon
  • Shiloh
  • Fairview Heights
  • Belleville
  • Collinsville
  • Mascoutah

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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Kaitlyn Braun
Kaitlyn is a passionate math instructor who finds joy through teaching kids how to excel with their math skills. She is currently pursuing a Bachelor of Science in Psychology with a minor in Nutrition with goals of earning a Master’s degree in School Psychology. Familiar with the statistical aspects(...)

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

Are you a Parent Frustrated with Common Core Math Standards?

Sep 13, 2017 | O'Fallon

You aren’t alone. Lately, many parents in O’Fallon have been scratching their head in confusion as they looked at their child’s math work.  Common core standards are shifting math education. Parents are frustrated by not understandi..

Fix "Broken" Math Tools

Aug 8, 2017 | O'Fallon

Fix “Broken” Math Tools Have you ever used a broken or ineffective tool? The tool can be anything from a dull knife, a phone, or a remote needing new batteries. I bet you got frustrated every time you used the tool. Maybe you didn’t g..

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"I see the improvement in nephew and now he’s starting to feel good about math..Thank you "

— Andrea Smythe

O'Fallon

210 Hartman Lane #100

O'Fallon, IL 62269

United States

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