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.

Chloe Kim

Assistant Center Director
School Attending: Cal Poly Pomona

Major: Applied Math Major and Computer Science Minor

Hobbies and Interests: I love to play sports, go hiking, read, and listen to music!

What I love about Mathnasium: I love that students are excited to come into Mathnasium and tell us about their days. It's great to see students making new friends every session and I especially love when quiet students open up as they get more comfortable.

With Mathnasium Since: May 2021

Interesting Facts: I played soccer with Shaggy from Scooby-Doo

Katie Christensen

Lead Instructor
I am currently attending Citrus College majoring in Early, Elementary, and Special Education. I have a passion for teaching young students and I love that at Mathnasium we strive to make learning math a fun activity. I love animals, baking, art, and music, and I have a twin brother.

Jesse De La Roca

Lead Instructor
I am currently attending CSULB studying for my Bachelor's in Fine Arts with an emphasis in Animation. At Mathnasium, I love creating a safe and welcoming space for young minds all while helping them improve their math skills. My favorite activities include playing video games, roller skating, and doing puzzles. An interesting fact about me is that I know how to 3D model for video games and play D&D campaigns.

Chloe Scherck

Instructor
I am currently a senior at South Pasadena High School. In college next year, I plan to major in Nursing. At Mathnasium, I love working with the kids and seeing them progress in their math skills. In my free time, I like reading, dance, watching tv, going to the beach, baking, and spending time with friends. An interesting fact about me is that I was born in Washington, D.C.

Joaquin Phillips

Instructor
I am in my first year at USC, majoring in Astronautical Engineering. I really love talking about math concepts with kids and helping them understand them, while also getting to know kids and their interests. I love math, but I also like playing video games like Valorant, Overwatch, and Dark Souls, and I like sports like volleyball and swimming. I am also double-jointed in my pinky fingers.

Julianne Wong

Instructor
I am in my second year at USC film school, studying Media Arts and Practice, with a minor in web development. At Mathnasium, I love that even though I'm here to help students, it still feels like I'm spending time with some good friends. My favorite activities include drawing, speedrunning sudoku, video games, cooking, as well as taking blurry pictures of my food and ugly pictures of my cat. I have a fear of animatronics, so going to Disneyland is essentially picking which ride horrifies me the most.

Mateo Cortes

Instructor
I currently attend Los Angeles College Prep Academy, and I plan to major in psychology in college. At Mathnasuim, I love the fact that everyone leaves here with a smile. It is an incredibly positive environment. In my free time, I like solving Rubik's cubes and jigsaw puzzles, as well as journaling. I also like sports and have played soccer for over 9 years.

Orrin White

Instructor
I attended Northeastern University, and I am certified in both Mathematics and Physics. I love the congenial atmosphere at Mathnasium. I like whitewater rafting and wilderness conservation, and I used to work on a lobster boat in Maine.

Zoe Kim

Instructor
I am currently a senior at South Pasadena High School. In college next year, I plan to major in the STEM field. At Mathnasium, I love connecting with the students while helping them improve their skills. In my free time, I like, baking, reading, playing soccer, and listening to music. An interesting fact about me is that I met Joe Jonas at Mammoth.

Sydney Greeno

Instructor
School Attending: Artcenter College of Design Major: Animation Hobbies and Interests: I love to draw, paint, go to concerts, and volunteer! What I love about Mathnasium: I love showing students effective tricks to solve their math problems quickly. Interesting Fact: I was born on the day the movie Finding Nemo was released in theaters.

Thomas Sorensen

Instructor
I am currently a senior at La Canada High School. In college next year I plan to Major in either Computer Science or Electrical Engineering. At Mathnasium, I love talking with and getting to know the kids, and just helping them understand and hopefully enjoy math. In my free time, I like playing video games, cooking, and playing with my cats. An interesting fact about me is that I can solve six different types of Rubick's cubes.

Michelle Han

Instructor
I majored in Neuroscience at University of Southern California. At Mathnasium, I love the atmosphere of working together with the students and the team. In my free time, I like drawing, watching Minecraft or D&D series, and making self-improvement plans. An interesting fact about me is that I know how to Juggle.

Ryan Kim

Instructor
I am currently attending South Pasadena High School, and I plan to major in Engineering in college. At Mathnasium, I love getting to know the students and their awesome personalities. In my free time, I like playing video games, biking, cooking, and reading. An interesting fact about me is that I know 6 digits of pi and am currently in my high school's marching band.

Lance Leung

Instructor
I am currently attending South Pasadena High School, and I plan to major in business. At Mathnasium, I love helping kids understand math concepts they are having trouble with. In my free time, I like playing video games, urban exploring, and collecting Pokemon cards. An interesting fact about me is that I like to play League of Legends and am ranked Emerald 2.

Samuel Lim

Instructor
I am currently attending South Pasadena High School, and I plan to major in Computer Science in college. At Mathnasium, I love that I get to work with younger students and help them with one of my favorite subjects: Math. I've always enjoyed helping others and Mathnasium gives me the opportunity to do just that. In my free time, I like playing video games, soccer, and doing math. An interesting fact about me is that I am left-handed only in writing.

Evan Yuan

Instructor
I am currently attending Pasadena City College majoring in Machine Design and Automation. I'm great at puzzles and playing the guitar and I love that at Mathnasium we provide students with efficient problem-solving methods and personalized teaching strategies. I moved to the USA a few years ago and it is very different from where I am from.

Lucas DuBria

Instructor
I currently attend South Pasadena High School, and I plan to major in Wildlife Biology. I love working at Mathnasium because I love to help others with math and it's a nice and friendly environment. In my free time, I play volleyball and work with animals. I also love to go thrifting. One interesting fact about me is that my elbows are double-jointed.

Caitlyn Alegria

Instructor
I am currently attending PCC but I plan to transfer to CSULB. I am majoring in Electrical Engineering. At Mathnasium, I love that each student gets their own customized learning plan that can help and that we focus on learning and not just completing their work. In my free time, I like playing catch, going to Disneyland, and watching TV and movies. An interesting fact about me is that I have two younger sisters, a dog, and a cat.

Jeffrey Han

Instructor
I attended college at USC, majoring in computer science. At Mathnasium, I love the fact that we focus on helping students understand, instead of just focusing on test scores. In my free time, I like building computers, video games, cars, DIY repair, animation taekwondo, tennis, and soccer. An interesting fact about me is that I replaced my own iPhone screen and battery.

Alejandra Cermeno

Education Specialist
Alejandra graduated from the University of California, Riverside in 2019 with a bachelor’s degree in Mathematics. Shortly after graduation, Alejandra joined the Mathnasium of Pasadena team as an instructor and advanced her way to Center Director over the course of 3 years. As Education Specialist, she is now in charge of all student learning plans, training of new instructors, and furthering the training of current instructors alongside Xavier, the District Support Specialist.

Andrew Molina

District Manager
Andrew graduated from the University of San Diego in 2016 with a bachelor’s degree in Economics. After graduation, he joined the team at Mathnasium of South Pasadena as a Math Instructor. After moving his way up to Lead Instructor and Assistant Center Director, Andrew became the Center Director for the Mathnasium of South Pasadena. Due to the wonderful time he had managing the South Pasadena center over the course of 3 years, Andrew looks forward to his new role as District Manager. As District Manager Andrew will oversee the management of the Mathnasium centers located in Monterey Park, Pasadena, San Marino, and South Pasadena. He is excited to continue to provide top-tier customer service at each Mathnasium location as well as help build his students’ confidence so they can succeed at any goal they set for themselves.

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.

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

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