Mathnasium of O'Fallon

Mathnasium of O'Fallon

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We help students catch up, keep up, and get ahead in math.

08/20/2026

It's not you! Math really is taught differently now ๐Ÿ“ That's exactly why we're here.

08/17/2026

This is what "ready" actually looks like ๐Ÿ™Œ Comment if you have a student who is about to walk in like this.

08/12/2026

Have you ever considered seeking math help for your child as the school year is starting? You should! Cruise on over to our Number Sense Blog to find out why! ๐Ÿซ๐Ÿ“š

๐Ÿ”— bit.ly/40WNRRL

08/10/2026

Parent Poll!!!! Okay so you may not solve equations every day, but chances are youโ€™re using math allllll the timeโžก๏ธ

๐Ÿ’ธ budgeting
๐Ÿ›’ shopping
๐Ÿช cooking

which math skills get the most use in your life?

08/08/2026

Endless possibilities, infinite potential. Happy Infinity Day! โ™พ๏ธโœจ

08/05/2026

Back-to-School prep is crucial for a great start to the year. What's your number one tip?? Tell us in the comments ๐Ÿ‘‡

07/24/2026

Mastering math is a journey, not a sprint! ๐Ÿš€ With the winning combo of consistent practice and personalized coaching, students can bulletproof their foundations, conquer learning gaps, and unlock unstoppable growth all school year long.

07/23/2026

Ever guessed how many marbles were in a jar? ๐Ÿซ™

Estimating is an important math skill, but what happens when your estimate isn't quite right? If you guessed 40 marbles and there were actually 65, how far off were you? That's where percent error comes in. It helps us measure the difference between an estimate and the actual value.

Can you figure out the percent error? Let us know your answer in the comments! ๐Ÿ‘‡

07/20/2026

๐Ÿ“Š Understanding percent error is about more than memorizing a formula- it's about making sense of estimates and real-world results.

Whether you're comparing a prediction to an actual outcome, estimating a budget, or analyzing data, percent error helps us understand how close we were.

Save this quick guide for the next time your student is working with percentages, ratios, or data analysis ๐Ÿ”— bit.ly/44cRjZX

07/17/2026

Happy World Emoji Day! ๐ŸŽ‰๐Ÿ“ฑ

Did you know there are currently over 3,700 emojis available on your keyboard? If you wanted to send a text message with just 3 different emojis, there are over 8 BILLION possible combinations you could make! ๐Ÿคฏ

Thatโ€™s the magic of combinatorics (the branch of math dealing with combinations). Math is everywhereโ€”even in your group chats! ๐Ÿ’ฌ๐Ÿ”ข

Does your child love big numbers, or do they need a little help tackling them? At Mathnasium, we build customized learning plans to help every student succeed.

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Location

Category

Telephone

Address


210 Hartman Lane, Ste 100
O'Fallon, IL
62269

Opening Hours

Monday 3:15pm - 7:30pm
Tuesday 3:15pm - 7:30pm
Wednesday 3:15pm - 7:30pm
Thursday 3:15pm - 7:30pm
Friday 3:30pm - 5:30pm
Sunday 2:15pm - 5pm