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.

Mayra Ornelas

Regional Director

Mayra Ornelas graduated from UCLA with a Bachelor of Science in Psychobiology. She finds immense joy in helping students understand mathematics, one of her favorite subjects.  

Mayra especially loves witnessing the moment students grasp a difficult concept, seeing their happiness and confidence grow. Outside of Mathnasium, she enjoys listening to music, watching baseball, and spending time with family and friends.

Coleman Kelley

Assistant Center Director
Hello! My name is Coleman. I graduated from Clemson University with a B.S. in Biochemistry and a minor in Psychology. I worked in the medical and research fields before deciding I wanted to try the teaching space. I love working at Mathnasium! The system is so effective in getting students motivated and it’s so rewarding to be able to help a student overcome a concept they are not quite understanding or to just encourage them as they learn new concepts. I enjoy the outdoors. Hiking, camping, snorkeling, pickleball, you name it, I’ve probably tried it, but that doesn’t mean I don’t also enjoy a night in with a good movie and my cat, Jupiter.

Danny Gonzalez

Assisstant Center Director

Hello! My name is Danny Gonzalez, and I am a recent graduate of El Camino College, where I earned an Associate of Science degree in Physics and Mathematics. I have experience teaching and mentoring young students through my role as a Student Ambassador at El Camino College, and I’m excited to apply that experience to the world of mathematics.  I love the moment when a difficult math concept finally clicks, and helping students experience that same sense of understanding and accomplishment is incredibly rewarding. In my free time, I enjoy playing volleyball and spending time outdoors hiking, climbing, and camping.

Mel Strom

Lead Instructor

Mel Strom has dedicated most of his adult life to teaching and researching natural language, including Russian linguistics, literature, and history. Early in his career, he spent several years teaching math, physics, and computers at Brentwood School in Los Angeles.  

With a lifelong passion for physics, Mel has now returned to mathematics, the language of natural science. The joy of doing math with his grandchildren inspired him to join Mathnasium and share his love for the subject with more students.

Aaron Cruz

Lead Instructor

Aaron Cruz graduated from USC with a B.S. in Chemical Engineering. A former student at Venice High School, he has always enjoyed being active, playing competitive soccer and dancing traditional Mexican folklorico.  

Aaron is passionate about making math enjoyable for students, transforming it from a frustrating puzzle into a fun game. He strives to help students overcome challenges and discover the engaging side of mathematics.

Anna Nippoldt

Instructor

Hi, I am Anna. After a nine-year career of gymnastics coaching, I am here at Mathnasium teaching something else I love…math. I studied mathematics and economics when I was in college, attending the College of the Sequoias and the University of California, Los Angeles. In my free time, I actively engage with a local church and also host children in my home who are at-risk of entering the foster care system. My favorite part of working at Mathnasium is connecting with each child who is at my table. I consider it an honor and a privilege to be a consistent influence in their life and witness them grow as a person and in their understanding of math.

Rachel Tiet

Instructor
Hi! My name is Rachel. I am a graduate student at the University of Massachusetts Global for a teaching credential in life science and a Master of Arts in Teaching. I’ve always loved math and science, and I want to push the boundaries of teaching these subjects so that they can be more accessible to all students. I love working with the students at Mathnasium, and I’m always glad to help students find which learning strategies work best for them. In my free time, I enjoy playing video games with my family and playing with our dog.

Ella Ou

Instructor
Hello! My name is Ella. I go to Culver City High School where I do colorguard in the school’s marching band and also run a badminton club. I enjoy working at Mathnasium as it gives me the opportunity to help kids expand their mathematical knowledge and grow their confidence in being able to tackle any challenging problems. In my free time, I enjoy crocheting and going on bike rides to wherever the road takes me. I also love live music, so concerts and music festivals are my favorite places to be!

Ethan Azeroual

Instructor

I am a student at Culver City High School in double accelerated math. I’ve been attending Mathnasium all my life and am very familiar with the program. I love math and working with kids so this job is perfect for me. Outside of Math I love sports, especially Basketball and Football.

Eden Khazaeni

Instructor

Hi! My name is Eden and I am currently a student at CCHS. I am president of For The Beach Club at my high school and occasionally do some math peer tutoring as well. I used to be a Mathnasium student for 3 years and am now proud to sit on the other side as an instructor. Outside of school, I love traveling, trying new foods, learning new languages, and spending time with friends. After high school, I hope to study linguistics and or education to become an elementary school teacher. I love working at Mathnasium because it combines my passion for working with kids and my love for math.



Hayden Montgomery

Instructor
Hi, my name is Hayden Montgomery, and I’m a second year Statistics & Data Science student at UCLA. Math has been my favorite subject since elementary school, and I like being challenged by difficult problems. In my free time I enjoy swimming, cooking, and playing basketball with friends. I like working at Mathnasium because it’s a job where I can really feel like I’m making a positive impact on my community.

Erick Morales

Instructor
Hi, I am Erick! I am excited to be a part of the Mathnasium team. I am a USC graduate with a BS in Mathematics (Fight On). With my background in education and skills in teaching math, I believe I can make a positive impact. What drew me to Mathnasium is the combination of student encouragement, tailored subjects, and fun. I am always eager to engage students in the curriculum, help them appreciate the importance of learning, and help create critical thinkers. I am excited to contribute to this team, while also being an avid animal lover, attending math conferences, and enjoying a relaxing horror movie on my own time!

Graham Gafni

Instructor

Hi! My name is Graham and I attend Culver City High School. I am part of the Water Polo team and am a co-president for the GeoGuessr Club at the school. Outside of school, I love swimming, watching sports such as basketball, and playing guitar. I also love going to rock concerts and playing live music. Another thing I am passionate about is Youth and Government, which I have been in for two years. This program prepares me with public speaking and engaging, and also teaches me how to talk to new people. I love Mathnasium because it allows me to interact with children and help them out with difficult problems. Working with children is one of my passions and I carry it over to my work with Mathnasium.

Kaya Willfors

Instructor

Hello! My name is Kaya and I am currently a Junior attending Culver City High School. At school, I am the vice president of one of my school’s engineering clubs, an ambassador of its college and career center, and a peer tutor. Outside of this job and school I very much enjoy reading, especially fantasy books, playing board games and video games, and activities like skiing. I also enjoy puzzles and have a passion for languages and geography. Additionally, my favorite subject in school has always been math and so I’m very fortunate to have gotten a job that allows me to engage with it so much and to spread the joys of it to others. The best part of being an instructor at Mathnasium is for sure helping the students build their confidence in the subject and getting them to feel more comfortable facing challenges and difficult concepts.  

Keon Riley

Instructor
Hi! My name is Keon and I am a student at Culver City High School. At the high school, I am the president of Japanese Culture Club and I’m in the Varsity Boys Volleyball program. Outside of school, I love listening to music, photography, hiking, anything nature, going on long drives, and playing video games. I enjoy working at Mathnasium because I love working with kids and helping them understand complicated math topics.

Ethan Born

Instructor

Hi, I’m Ethan! I’m an Applied Mathematics student at Santa Monica College, working toward transferring to a UC to continue my studies. Outside of academics, I enjoy playing basketball, cooking, and listening to music. My favorite player is Anthony Edwards, and my favorite artist is Marvin Gaye. I’m also a big fan of dinosaurs, with the Utahraptor being at the top of my list. Both of my parents are teachers, so the importance of education was instilled in me from a young age. I love Mathnasium because it lets me share my passion for math while growing through the connections I build with the kids I instruct.





Nicky Seyfried

Instructor

Hi! My name is Nicky. My passion for education and working with kids started when I was a teenager working at a Mathnasium location in the San Francisco Bay Area. I worked as an instructor for two years before transitioning to be a lead instructor for 2 more years. I stepped away from the company to focus on my studies at UCLA. After graduating with a B.A. in Dance and a B.A. in Public Affairs in June of 2025, I started teaching right away as a Teach For Aamerica corps member. In Fall of 2025, I got to be the teacher of my own classroom at the age of 21! Now, I have my General education multi subject  teaching credential from Umass Global, looking to obtain my Masters of Teaching in December of 2026. I love Mathnasium because the curriculum gives students the opportunity to learn mathematics through socratic questioning and deep practice. In fact, I find myself using a lot of the teaching methods I learned from Mathnasium in my classroom. With more experience under my belt, I am super excited to make a difference once again at Mathnasium!

Jessica Yamashiro

Instructor

With an interest in statistics and programming, I graduated from UC Davis in Data Science. I found a strong liking for math after I had an amazing high school teacher, so I am hoping I can help others find their confidence in the subject. It is always rewarding to see the Mathnasium students learn and grow! In my spare time I like to sew, junk journal, and watch movies. A fun fact about me is that I learned how to play the banjo in college. 


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

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