Our staff is built to teach each student individually, to develop the skills they need to thrive in mathematics, and to foster a love of learning.

Nick van Vliet

Operations Director
Nick graduated with a Bachelors Degree in Business Finance from Cal State University Northridge. He first joined the Mathnasium team in 2014 after learning about the impact that Mathnasium was making in students' lives. After working as the Center Director in Irvine for 2 years, in Diamond Bar 3 years, and in Santa Clarita for 1 year, he moved into an operations role and currently oversees 5 Mathnasium centers. He is committed to creating an encouraging environment where students can build confidence and conquer math while still having fun. His goal is to ensure that students have an effective, engaging, and encouraging learning experience that cultivates an intuitive understanding of math. Nick loves teaching, coaching, and encouraging students to work hard and rise up to their potential. In his spare time he enjoys playing sports, competing in any game known to man, bbqs, and reading.

Sherin Yueksel

District Manager

Sherin graduated from the University of California, Berkeley, with a Bachelor's Degree in Economics. She first started at Mathnasium as an instructor in 2021. She was quickly promoted to Assistant Director and even helped establish Mathnasium of Valencia. Sherin has pursued a career at Mathnasium because she wants to make an impact in her community and she wants to help as many students as possible. She is passionate about creating a welcoming environment where every student feels comfortable, confident, and can strive for excellence. In her free time, she loves spending time with her family, shopping, and making new recipes.

Kelsie Bui

Instructor
Kelsie is a quantitative economics major and an actuarial science prospect. She enjoys mathematics and uses it to assess risk. In her leisure time, she enjoys playing video games, reading books, and creating art.

Anthony Guggia

Instructor
Anthony is currently a student at Orange Coast College, majoring in mathematics. He plans to teach mathematics in college after he graduates. Anthony enjoys chess, learning, and spending time with his friends.

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.

Anna Davis

Instructor

Reanna graduated with a Bachelor's in Wildlife Biology and is passionate about learning and education. Math and science have always been her favorite subjects, and she enjoys helping others build an appreciation for them. She loves working with kids, encouraging them to explore their curiosity and to foster their creativity. At around age 14, she started volunteering at a summer camp and quickly realized she had a heart for working with children with special needs and learning disabilities. Outside of work, she loves all things nature - especially hiking and birding. As outdoorsy as she is, she also loves reading, gaming, or watching a good movie!

Allison Vo

Instructor

Allison is currently a student at Huntington Beach High School and is passionate about all things math and science related. Her goal is to be a Kinesiology major in college and become a primary sports care physician for a national sports team in the future. In her free time, she especially loves to read books, participate in karaoke, and take photos.

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!

Lori Kim

I was the Center Director at Mathnasium of South Costa Mesa. Prior to opening the Mathnasium Center, I have worked in finance and commercial real estate. I received my BA in Anthropology from the University of California at Berkeley. I started this Mathnasium journey when I first discovered that my second child was struggling in math but didn't want help from her own mother. I enrolled her in a local Mathnasium and found the Mathnasium Method to be critical in my daughter's foundational understanding of math. Witnessing this in my own child I am passionate about teaching other children of all ages how to make math make sense. I believe every child has the ability to be successful in math and would like to extend our program to the community of Costa Mesa and Newport Beach.

Our Mathnasium Mission

Teach children math so they understand it, master it, and love it. Math can change their lives, and they can change the world.

Quote Quote
What I love about Mathnasium is the ability to teach problem-solving skills and make math make sense, while also making a student smile.
Amber W., Mathnasium Instructor

Schedule Your Math Skills Assessment Today

Student using math cubes to solve fractions
Student working with a math tutor at a local math learning center

Want to join the Mathnasium team?

Are you interested in changing lives through math? We're looking for outstanding individuals with a high level of commitment who are passionate about teaching math. Find out if there's a Mathnasium position that's just right for you!

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