What are the opening hours?

Monday 3pm - 8pm Tuesday 3pm - 8pm Wednesday 3pm - 8pm Thursday 3pm - 8pm Friday 3pm - 6pm Saturday 10am - 2pm Sunday 1pm - 5pm

Mathnasium of 4S Ranch

Mathnasium, the Math Learning Center, is a fun learning environment that helps kids boost their math Children have different needs and reactions to math.

Some struggle with success and therefore "hate" it. Others need routine support but are keeping pace. Some become bored if they do not feel challenged. Mathnasium is the perfect program for each of these students as we help them catch up, keep up and get ahead.

Operating as usual

04/13/2025

Wishing all who celebrate a joyful and meaningful ! 🌟 From our family to yours, may this holiday be filled with reflection and cherished moments. Chag Sameach! 🕎✨

04/12/2025

04/09/2025

📚 The countdown to the end of the school year is ON and now is the time to make a strong finish. 💪

Whether your child is catching up, keeping up, or getting ahead, these 5 tips will help set them up for success as the school year wraps up. ✨ Learn more: bit.ly/42sEXvl.

04/07/2025

Learning Math is SO Rewarding!

04/07/2025

Homeschool families, we’ve got you covered! 🙌 With , you can provide your child with a customized math program that fits your schedule and your needs. Our expert instructors are here to guide your child toward math success, no matter where they are on their learning journey. 📚✨

Ready to give your child the best in math education? Learn more here: 🌐 bit.ly/42DKzmH.

04/05/2025

🚨K-2 Parents🚨 Now is the time to help your student establish a strong foundation in math with Numerical Fluency!

Numerical Fluency is when elementary school students can recall their math facts with accuracy, efficiency, and understanding, which is critical to building a strong foundation for math success.

Our proven curriculum teaches elementary students critical thinking, taking them beyond strict memorization of facts.

Set your child up for a lifetime of success and learning, and visit us our website for more information about our Numerical Fluency programs.
https://www.mathnasium.com/math-facts

04/05/2025

Meet our Assistant Center Director, E’Laina 🤩

Mathnasium of 4S Ranch
Serving K-12 Students in San Diego
(858) 312-8888 (call or text)
www.Mathnasium.com/4SRanch

04/05/2025

Thanks for your continued referrals and support of our learning center, Blanca! ⭐️⭐️⭐️⭐️⭐️

Mathnasium of 4S Ranch
Serving K-12 Students in San Diego
(858) 312-8888 (call or text)
www.Mathnasium.com/4SRanch

04/04/2025

It’s , and what better way to celebrate than with a mind-blowing stat? 🤯 Math helps us understand the incredible complexity of our world — even in something as simple as ! ♠️♥️♣️♦️

Share this fun fact and show how amazing math can be!

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Your 4S Ranch Mathnasium

Mathnasium is a math-only learning center that offers math tutoring and enrichment, homework help, and test preparation services for students in grades 2-12. Mathnasium’s core program is built around the Mathnasium Method.

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Assessments

All Mathnasium students start by taking a customized assessment which pinpoints their learning needs. We meet them where they are and take them where they need to go. Mathnasium’s unique assessment process determines (with great accuracy) exactly what each child knows and what they need to learn. Our assessment reveals each specific skill area that needs to be mastered so kids aren’t wasting time reviewing concepts they already know.Assessments continue throughout your student’s Mathnasium instruction. These assessments are regularly given to ensure progress and that your child retains the skills they’ve learned.

Customized Learning Plan

We then design a customized learning plan for teaching the concepts the student needs to master. The learning plan identifies the math concepts needed to meet the specific learning goals for your child. We use a combination of proprietary materials and instruction techniques to ensure your child masters these concepts.

Specially Trained, Caring People Who Teach

Mathnasium’s specially trained instructors implement the learning plan and work with each student to ensure they master the material. We want to be there when the learning happens—all teaching takes place during the Mathnasium session, and we don’t assign homework. Our math tutors foster a caring, encouraging environment that helps kids thrive and learn!All instructors are required to pass a rigorous math screening that tests mathematical thinking, familiarity with our approach, and their ability to translate complex concepts in a relatable way for kids.

The results are transformative—families will see measurable changes in attitude, confidence, and school progress.

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Mathnasium of 4S Ranch is proudly owned and operated by Karen Lossing.

Karen began her career in education when she found her son falling behind in school. She new he had the potential to be a successful student, he just needed someone to take the time to work with him.

Karen went back to get a Masters in 21st Century Education and her teaching credential in the state of Texas. After years of working as a special education and elementary school teacher, Karen made the move to school administration and began writing curriculum for her school district.

When her family moved to San Diego, California, Karen knew she wanted to stay focused on education and working with students. So she became a franchisee with Mathnasium in 2013 and never looked back. She now owns and operates multiple Mathnasium locations in San Diego, California and Phoenix, Arizona with her husband, Steve, and daughter, Libby.