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Mathnasium 125 Old Grove Road, #9, Oceanside CA 92057 (760) 472-3742

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Our center is open in accordance with all federal, state, and local safety measures. We are still offering our Virtual Live Instruction. Contact us for more details.

Welcome to Mathnasium of Oceanside North

Center Director
Hello. I'm Calah Ortega, Center Director of Mathnasium of Oceanside North, your neighborhood math-only learning center. We help kids in grades K-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 1,000+ 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

How COVID19 Has Impacted Our Program

First and foremost, we are still open! We never closed, actually.

In march, we transitioned all instructions online (maybe you have heard about Mathnasium@Home live one-on one instruction).

On June15th, after careful preperation and implementation of new safety protocol (masks, limiting # of students, instructing from safe distance, disinfecting between each session and more) we re-opened for in-center instruction.  We decided to keep Mathnasium@Home available for those who wished to continue from home.

Just like you, we are doing our best to navigate through the challenges brought on by COVID19.  And as long as kids need math support, we'll find a way to deliver!


Schedule are Free Math Skills Assessment

Mathnasium of Oceanside North is excited to help students in the North County community.  Our expert math staff is passionate about helping kids in our area improve, whether they are excelling at math or struggling with one or more aspects of it.  We strive to help them catch up, keep up, and excel in math through our year-round sessions that include homework help and summer math programs.


Book your first visit with us online:


Also available in your area, real-time face-to-face instruction over an internet connection.