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.

Jonathan Harrod

Center Director

Jonathan graduated from UC Riverside with a Bachelor’s Degree in Classical Studies and Language & Linguistics. He has always enjoyed teaching and helping others, tutoring peers and students in various subjects over the years. While he appreciates many disciplines, math and history are his favorites. 

Jonathan looks forward to making a positive impact on Mathnasium students by fostering both understanding and confidence. In his free time, he enjoys playing video games and spending time with friends. 

Kat Chiu

Assistant Center Director

Kat, short for Kristin, graduated from Cal State Fullerton with a Bachelor’s Degree in Criminal Justice. She has worked as a private tutor for students of all ages and in all subjects before finding her place at Mathnasium. 

Known for her approachable nature and commitment to helping students succeed, Kat enjoys guiding learners toward a deeper understanding of concepts. Her dedication makes her a valued part of the Mathnasium of Walnut team. 

Dana Kong

Lead Instructor

Dana graduated from UC San Diego with a Bachelor’s degree in Mathematics and Computer Science. She loves helping students overcome challenges in understanding math concepts by building on their strengths and addressing their weak points. Dana views math as an intriguing lens through which to perceive the world around us. Despite her academic background, Dana has a long-term interdisciplinary interest in pursuing a more biology-oriented career. In her free time, she engages in a variety of hobbies, including: table tennis, mycology, chess, traveling and exploring cuisines from diverse cultures, playing pool, and creating digital art.

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

Want to join the Mathnasium team?

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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