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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:


Jack DiMillo, Center Director

Jack DiMillo has been with Mathnasium since early 2016 at the Fullerton location as an Instructor and Team Leader. He began his journey at Mathnasium because of his passion for working with kids. In the past, Jack worked as a swim instructor for the YMCA and realized how much delight there was in helping children learn. Although math was always his best subject, Jack understands the difficulties that students can have with math, and believes that with hard work and determination, all students can achieve math success. Jack’s ultimate goal is to help young students conquer their fear of math, and replace it with confidence and joy. Similar to his fellow mathletes, he has other non-academic hobbies including body surfing in Newport Beach, and playing billiards with friends.

Stephen Apeaz, Instructor

Stephen is currently attending Cal State Fullerton University as a Molecular Biology and Biotechnology major. He likes to work with the kids because its fun interacting with them and teaching them math so they can have a more successful future. He loves making everything fun, especially math. On his free time he likes going on adventures with friends such as hiking, swimming, or playing a classic sports game like soccer or basketball. 


Amanda Braech, Instructor

Amanda graduated from San Francisco State University with a B.A. in Mathematics for Teaching and a minor in Art History/Studio Art. Her favorite activities are playing basketball and going to the beach with friends. Her favorite aspect to teaching is experiencing the students’ successes with them. 



Jose Estrada, Instructor

Jose earned a B.S degree in Chemistry and is currently pursuing his M.S degree in Chemistry at California State University, Fullerton. As a college student he first started tutoring for the AVID program at Portola Middle School and later for the math department at California State University, Fullerton. In his spare time he enjoys playing strategy games.


Kaitlynn Shattuck, Instructor

Kaitlynn is currently attending Santiago Canyon College, with plans to transfer to University of California in Irvine as an Applied Physics Major in the near future. She has long held a fascination with the applications of mathematics, which has fueled her love for learning.



Sabrina Solis, Instructor

Sabrina is a student at Cal State Fullerton. She is majoring in Business Management and is in the Business Honors program. She was the captain of her High School Varsity soccer team. Sabrina used to volunteer at the daycare of her Church; she liked working with the kids and learning how to teach different personalities. She enjoys tutoring math because there are many ways the kids can apply it to real life. 


Adam Bender, Community Relationships Coordinator

Adam earned his Bachelor's degree in Business and Communication from the University of Southern California and is a proud Trojan. Adam is thankful that his longtime passion for working with kids and the community is now intertwined with his career. He grew up giving back to his community by coaching basketball at the Boys & Girls Club, working with underprivileged youth in South Los Angeles, volunteering with the Special Olympics, and tutoring his high school peers. Adam was the Center Director at Mathnasium of North Santa Clarita for its opening year, where he worked to make the Center an integral part of the community, and he is now applying that experience to several centers. Adam believes there is no greater reward than helping kids learn, thrive and feel confident in their abilities and is very excited about introducing mathnasium to a wider audience to help more children understand math and see their confidence reach its fullest potential. 

We can't wait to help Make Math Make Sense for your child!