Welcome to Mathnasium of Rancho Santa Margarita

My kids improved in math and started to enjoy math classes more after 6 months.

Teri Hoang

Mathnasium offers tremendous flexibility. They have a patient team of math experts. They are incredibly respon...

David Gonzalez

Complimentary Assessment and Trial

Call us today and receive a complimentary assessment and three 1-hour sessions to get your child set up with our program!

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Rancho Santa Margarita

  • 22431 Antonio Parkway
  • Rancho Santa Margarita, CA 92688
  • Call (949) 888-6284

Hours of Operation

Instructional Hours

Mon 4:00 PM - 7:00 PM
Tue 10:00 AM - 1:00 PM
Wed 4:00 PM - 7:00 PM
Thu 10:00 AM - 1:00 PM
Fri 10:00 AM - 1:00 PM

Office Hours

9:00AM - 8:00PM
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Hello. I'm Roel Florentino, Owner/Center Director of Mathnasium of RSM, 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:

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!

Meet the Team gallery1

Instructor Spotlight

Roel Florentino
Roel is a credentialed high school math teacher, with 16 years of teaching experience. He received his Bachelor of Arts degree and Single Subject Teaching Credential in Mathematics from BIOLA University. He also holds a Master of Arts in Teaching. Roel has a long history in education. He has over 20(...)



One-on-One Assessment

Our unique assessment pinpoints what each child already knows and what they still need to learn.


Customized Learning Plan & Goals

Our detailed plan takes your child step-by-step from where they are to where they need to go.


The Mathnasium Method™

Our proprietary curriculum and teaching method fosters skills that take hold and build upon one another.

Latest News & Posts

2023 - 2024 Holidays

Jul 28, 2023 | Rancho Santa Margarita

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"My daughter enjoys going to Mathnasium."

— P.D.

Rancho Santa Margarita

22431 Antonio Parkway

Rancho Santa Margarita, CA 92688

United States