Mathnasium 260 Grove Street, Jersey City NJ 07302 (201) 434-6284

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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:

Naresh Jessani, Center Director/Owner

Naresh is the Owner and Center Director at Mathnasium of Jersey City.   A management consultant by background, Naresh decided in 2014 to pursue a career change and do what he really loves which is help kids in Math.  Naresh chose the Mathnasium approach because of the emphasis on one-on-one active instruction.   Naresh was born in England and moved to New Jersey at age 9.  He is a graduate of Glen Ridge High School and has a BA in Economics and Computer Science from Rutgers, New Brunswick.  He also has graduate credits from NYU Stern MBA Program and Lehman College Math Education Program. 
Naresh believes there's no better place to run a business than in the dynamic and diverse Jersey City community.  
Saul Castellanos, Director of Instruction
Saul has been with us since 2016. He is our lead instructor and has a true passion for Math. His passion extends to teaching Math, Math Research, Mathematical Modeling and most significantly Musical Forms. He likes building logical, step-by-step approaches to solve Math problems. He believes in helping students achieve success by developing their own passion for Math. He’s a Cum Laude graduate of Rutgers University – Newark with majors in both Economics and Music.  He is currently enrolled in a Jazz History and Research M.A. program at Rutgers. Saul is a long-time Jersey City resident and is a graduate of McNair Academic High School.