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Our Team

Our specially trained math instructors will teach your child how to understand math in an individual setting; our unique approach enables us to explain concepts really well and lend a helping hand to every student. Our tutors foster a caring, encouraging environment that helps kids thrive and learn! Read below to learn more about our talented team:

Nick van Vliet, Center 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 student's lives. After working as the Center Director in Irvine for 2 years, he made the transition to help serve the Diamond Bar community.  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 is actively involved in his church community and enjoys playing sports, snowboarding, competing in any game known to man, bbqs, and reading. 

InstructorMelissa, Assistant Director

Melissa has worked with kids for the past ten years as a preschool Sunday school teacher, junior high and high school group leader, private tutor, and nanny.  Melissa is currently working towards her Bachelor’s degree in Early Childhood Education through Liberty University. Her goal is to become a preschool or elementary school teacher. Melissa’s hope is to help kids feel welcomed, appreciated, and confident. In her free time, she enjoys going to Sprinkles for a cupcake, planning her upcoming wedding, and eating ice cream. 


InstructorKathy, Instructor

Kathy graduated from Biola University with a Bachelor's Degree in Mathematics with an emphasis in Secondary Education. Through the teaching credential program at Biola, she has experience teaching math in classrooms. She also was a teacher's assistant for math classes at Biola and a math tutor for high school students. Kathy has a passion for math and enjoys helping kids understand math better. She is also fluent in Mandarin! In her free time, she likes watching TV shows, playing sports, going out with friends, and reading.


Tommy, Instructor

Tommy graduated from California State Polytechnic University, Pomona with a Bachelor's Degree in Applied Mathematics/Statistics. He is currently continuing his education by pursuing a Master's degree in Mathematics. Tommy believes that one of the greatest feelings a student can get comes from knowing that a teacher supports and believes in him or her. It is a teacher's ability to motivate that can change a student's whole perspective on learning. He hopes to continue motivating and supporting students by becoming a math teacher. In his free time, Tommy enjoys drinking coffee, finding new places to eat and exploring different parts of the world!




Ace, Instructor

Ace graduated from the University of California, Irvine in 2011 with a degree in Business Economics. Since then, he has had a handful of years working with young adults as a summer camp coordinator, day care assistant, and even non-profit work assisting at-risk young adults obtain employment. Ace has a strong passion for helping children to be succesful in math. In his spare time, you can catch Ace riding his bike, playing video games, and watching anime. He hopes to continue serving the community and youth for many years to come. 

 Lawson, Instructor

Lawson is currently enrolled at California State Polytechnic University, Pomona in electrical engineering. Lawson has previous experience working with children as a super-hero party entertainer. He also has prior experience tutoring as a part time tutor in high school. Lawson enjoys helping kids understand math, since it is needed for the rest of their lives. In his free time, he enjoys snowboarding, binge watching Netflix, and going out with friends.

 Lindsey, Instructor


Lindsey is currently enrolled at California State Polytechnic University, Pomona in civil engineering. Lindsey has previous experience working with kids, being a nanny and tutoring her piers in math throughout middle school and high school. She hopes to encourage and motivate students to do well in school and build confidence in their abilities. In her spare time, she likes to find new coffee shops, read a good book, or go to Disneyland. 




 Natasha, Instructor

 Natasha graduated Los Osos High School in 2014. She has always loved numbers which is why she is pursuing a degree in business administration with a concentration in Economics and Finance from Cal State Fullerton. Natasha finds it incredibly rewarding to help students understand math. In her free time she enjoyins cooking, finding interesting places to eat, and traveling.