J. O
My daughter looks forward to all of her sessions at Mathnasium. The instructors are experienced and respectful...
See more reviews here




J. O
My daughter looks forward to all of her sessions at Mathnasium. The instructors are experienced and respectful...
See more reviews hereOur Results
94%
Math Skills
of parents report an improvement in their child’s math skills and understanding.
93%
Attitude
of parents report improved attitude toward math after attending Mathnasium.
90%
Success
of students saw an improvement in their school grades.
Our Results
The Proof Is In The Numbers
Math Skills
of parents report an improvement in their child’s math skills and understanding.
Attitude
of parents report improved attitude toward math after attending Mathnasium.
Success
of students saw an improvement in their school grades.
At Mathnasium of South Costa Mesa, our tutors use the Mathnasium Method™ to help students develop a deep understanding of math. This proprietary teaching approach blends personalized learning plans with mental, verbal, visual, tactile, and written techniques, ensuring each student receives math help tailored to their unique needs and learning styles.
The Mathnasium Method™ is designed to build a strong foundation for math excellence, empowering students to truly understand and even enjoy math.
Our caring and specially trained math tutors in Costa Mesa deliver face-to-face instruction in a supportive, engaging group environment. We support K-12 students of all skill levels, both in-center and online, to help them reach their full math potential.
Learn how Mathnasium tutors helped Malachi gain confidence in math.
At Mathnasium of South Costa Mesa, each student receives a personalized learning plan based on a detailed assessment of their skill level, challenges, and academic goals.
This tailored approach allows students to learn at their own pace while building critical thinking and problem-solving skills, along with the confidence they need to excel in their math journey.
Discover how Mathnasium helped Maddie transform her math skills to achieve more confidence in the subject. Initially struggling with the lowest math grades in her class, Maddie worked with our tutors using a personalized approach tailored to her specific needs.
Math Tutors Near You
We specialize in math-only instruction with a customized and fun learning approach that delivers results. We proudly serve local communities, including:
Specially Trained and Caring Team
Alleah McGrath
Center Director
Alleah brings a global perspective and a heart for education to her role as Center Director. She holds an MA in Global Migration Studies and a BA in Biblical and Global Studies, along with a TESOL certification. Her passion for teaching has taken her to classrooms in India and France, where she taught English to children of diverse backgrounds, including refugee students. Along the way, she has led teams and managed nonprofit programs supporting families and children, and has seen firsthand how the right kind of encouragement and teaching can change a child’s future.
At Mathnasium, Alleah combines her teaching experience and commitment to children’s growth with Mathnasium’s proven methods. She is dedicated to fostering an encouraging atmosphere where every child feels believed in and capable of success. With her background in education, operations, and global service, she is excited to help students not only master math, but also build the confidence to change their world.
In her free time, she likes cooking, reading, going to the beach, and spending time with family (especially her cute little niece).
Nick van Vliet
Operations Director
Nick holds a Bachelor’s Degree in Business Finance from Cal State Northridge and has been part of the Mathnasium team since 2014. He previously served as a Center Director in Irvine, Diamond Bar, and Santa Clarita before moving into an operations leadership role, overseeing five centers.
Nick is committed to creating encouraging environments where students thrive and build lasting math confidence. He enjoys coaching and motivating students to achieve their best. In his spare time, he loves sports, reading, BBQs, and competing in just about any game.
Sherin Yueksel
District Manager
Sherin earned her Bachelor’s Degree in Economics from the University of California, Berkeley. She joined Mathnasium in 2021 as an instructor, quickly moved into leadership, and helped open Mathnasium of Valencia.
She is passionate about creating inclusive and empowering spaces where students can feel confident and grow. Sherin enjoys spending her free time cooking, shopping, and making memories with her family.
Kelsie Bui
Instructor
Kelsie is currently studying quantitative economics and is exploring a future in actuarial science. She loves using math to understand and assess real-world risks, and she brings that analytical mindset to her work at Mathnasium.
Outside of teaching, Kelsie enjoys video games, reading, and creating art. She’s passionate about helping students connect with math in fun and meaningful ways.
Jemin Yoo
Instructor
Jemin is currently a student studying Mathematics at the University of California, Irvine. He has hopes of becoming a math teacher one day and inspire others to think with math. In his spare time, he enjoys working out, working on his 3D printer, and cooking.
Davin Huynh
Instructor
Davin is currently a student at UCI majoring in Mathematics. He plans to be involved with machine learning for his career. His hobbies include playing puzzles, hiking, and drinking tea.
Alex Meserve
Instructor
Alex goes to Newport Harbor High School and is the class of 2026. She is passionate about school and helping children. Working at Mathnasium gives her the opportunity to help students with math and make an impact on their future. In her free time, she enjoys going to the beach, working out and hanging out with friends, family and her dog!
Students can take 3 easy steps to enroll at Mathnasium.
All students begin their Mathnasium journey with a diagnostic assessment that pinpoints what they already know and what they still need to learn.
FAQ
Mathnasium of South Costa Mesa is located at 435 E 17th St, Unit #7, in the shopping center between Irvine Avenue and Tustin Avenue, just steps from America’s Cup, Phoenix Grace Nail Salon, and Art of Jiujitsu. We’re across the street from Mendocino Farms and Starbucks, with ample parking and nearby family‑friendly amenities that make learning easy to fit into a busy schedule.
We serve students from Newport Beach, Eastside Costa Mesa, and the broader city of Costa Mesa areas. Local schools supported include:
St. Joachim Catholic School
The Pegasus School
Mariners Christian Elementary School
Newport Heights Elementary School
Carden Hall
Kaiser Elementary
Mariners Elementary
Mater Dei High School
Newport Elementary
Newport Harbor High School
Woodland Elementary School
College Park Elementary School
David Magnet School
Wilson Elementary School
Costa Mesa High School
Adams Elementary School
Estancia High School
Yes, Mathnasium of South Costa Mesa offers both in‑center and online tutoring. All our students receive face‑to‑face instruction in a fun small-group environment and working with our Costa Mesa tutors, whether they attend in the center or online.
No, the experience and outcomes are consistent across both formats. Students who attend online receive the same personalized learning plans and face‑to‑face instruction from our caring math tutors as those attending in‑center.
We can help students learn and master any K–12 math class or topic, from basic arithmetic through Algebra, Geometry, and beyond.
Our tutors provide targeted support to help students make sense of math, close their knowledge gaps, and build solid foundations for math mastery, enhancing critical thinking, problem-solving skills, and confidence, both in class and beyond.
Mathnasium of South Costa Mesa provides premium value tutoring by combining a superior learning experience with an efficient monthly fee structure that keeps costs low.
There is a flat enrollment fee for our program, and students attend regularly. After a diagnostic assessment, we design a personalized learning plan with a recommended session frequency tailored to your child’s goals.
For enrollment and pricing details, contact us at [email protected].
No, membership pricing is the same whether students attend online, in person, or use a hybrid format.
Each student begins their Mathnasium journey with a diagnostic assessment that helps us identify their current skill level, learning gaps, and academic goals. This allows us to create a personalized learning plan that meets their unique needs.
At Mathnasium of South Costa Mesa, we don’t follow a traditional curriculum.
We use the Mathnasium Method™, a proprietary teaching approach that combines personalized learning plans with proven instructional techniques to help students truly understand and even enjoy math.
Our tutors build on what each student already knows, introduce new concepts step by step, and guide them toward mastery and confidence.
Yes! Mathnasium of South Costa Mesa supports students of all skill levels.
Students who are behind in math class receive caring, targeted instruction to build foundational skills and confidence. Advanced learners benefit from enrichment programs that challenge their thinking and deepen their understanding.
Absolutely! We welcome students from homeschool, public, and private school backgrounds throughout Costa Mesa and Newport Beach.
Yes, our tutors make time during each session to help students with their math homework and ensure they understand the material they're learning in school.
No. All learning takes place during sessions in person or online. We do not assign additional homework, so students can stay focused and make meaningful progress while they’re with us.
Yes. We help students prepare for school-based and standardized math tests, including state assessments, ACT®, and SAT®. Our test-prep includes personalized learning plans, targeted practice, and strategies to build both skill and confidence in math.
435 E 17th St, #7
Costa Mesa, CA 92627
| Call: | (949) 637-6284 |
| Email: | [email protected] |
Mon
2:30PM - 7:00PM
Tue
2:30PM - 7:00PM
Wed
2:30PM - 7:00PM
Thu
2:30PM - 7:00PM
Fri
CLOSED
Sat
12:00PM - 3:00PM
Sun
CLOSED
Mon - Thu
12:00PM - 7:00PM
Sat
12:00PM - 3:00PM
| Mon: | 2:30PM - 7:00PM |
| Tue: | 2:30PM - 7:00PM |
| Wed: | 2:30PM - 7:00PM |
| Thu: | 2:30PM - 7:00PM |
| Fri: | CLOSED |
| Sat: | 12:00PM - 3:00PM |
| Sun: | CLOSED |
| Mon - Thu: | 12:00PM - 7:00PM |
| Sat: | 12:00PM - 3:00PM |