Naperville North
8 West Gartner Road
, Suite 132
Naperville, IL 60540
Naperville, IL 60540
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.
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.
She began her career teaching high school English in suburban Indianapolis for six years, holding dual degrees in secondary English education and special education. Mackenzie later transitioned to the insurance sector, where she held upper management positions focused on training young professionals to thrive independently. Now at Mathnasium, she combines her passion for student achievement with professional expertise in data-driven analysis and workflow management to create a supportive, high-impact learning environment.
Javier Santacruz graduated from DePaul University with a B.S. in Accounting and later earned his law degree there. A lifelong advocate for children, he was drawn to Mathnasium’s mission of helping kids understand math in a way that truly makes sense. That mission quickly became his passion and his second career.
When he’s not working with the team, Javier enjoys time in the country, reading, and reflecting on the joy of helping others grow. He and his wife Karen raised two sons and now dedicate their time to giving back through education.
Karen Santacruz holds a B.S. in Physical Education from Western Illinois University and a Master’s in Exercise Science and Cardiac Rehabilitation. Her early career included teaching and serving as Head Athletic Trainer at Stevenson High School. While raising her two sons, she also coached youth sports and volunteered in scouting.
Karen has always been passionate about child development and loves working with students. She believes the Mathnasium Method is powerful because it helps kids develop a lifelong love of learning by making concepts clear and approachable.
Betty Wang graduated from New Trier High School and earned a B.S. in Biomechanical Engineering from Northwestern University. She blends her analytical background with a deep appreciation for student support and learning environments that reduce fear and frustration.
At Mathnasium, Betty helps ensure each center operates smoothly while maintaining the core values of encouragement and clarity. She’s proud to be part of a team that empowers students to embrace math with confidence and curiosity.
Teach children math so they understand it, master it, and love it. Math can change their lives, and they can change the world.
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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(630) 281-2384
(630) 281-2384
