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Welcome to Mathnasium of Johnsburg

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


When math makes sense, kids leap way ahead – whether they started out far behind or already ahead in math. Our formula for teaching kids math, the Mathnasium Method™ has transformed the way kids learn math for over a decade across 800+ centers in the US and Canada:

  • We know how to teach your child math.
    Our specially trained math instructors will teach your child how to understand math in an individual setting – our unique approach enables us to effectively explain math concepts and lend a helping hand to every student. Our tutors foster a caring, encouraging environment that helps kids thrive and learn!

  • We pinpoint your child’s learning needs, meet them where they are, and take them where they need to go.
    Mathnasium instructors use our unique assessment process to determine (with great accuracy) exactly what each child knows and what they need to learn. Next, we design a customized learning plan for teaching the concepts the student needs to master. It doesn’t stop there – our encouraging instructors continually check progress along the way to make sure kids truly understand and retain the concepts we’ve taught. The results are transformative – kids will see measurable changes in attitude, confidence, and school progress.

  • We will help your child overcome homework frustration.
    Our instructors will also set aside time to provide homework help. We help kids understand the homework assignment so they feel better prepared to complete the work at home – underscoring their understanding of concepts and transforming homework frustration into a welcome challenge.

About Our Center

Contact us at 815-669-9337 or for more information. 

Mathnasium of Johnsburg offers top-quality Math instruction/tutoring and homework help to students 1st-12th in Johnsburg, McHenry, and surrounding communities.  We also work with adults on a case-by-case basis. Our mission, our passion, is to provide supplemental instruction that will improve and/or enrich a child's abilities in Math.   We are committed to helping the kids in our communities advance in Math through our school and summer Math programs.  Our family-friendly center is conveniently located in the Shops at Fox River, on the corner just a few doors north of JCPenney. 


With Mathnasium of Johnsburg we have your Math needs covered- give us a call at 815-669-9337 today to learn more or schedule a Free Consultation!