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.

Cheryl Kornfeld

Assistant Center Director
Cheryl is a 34-year veteran middle school math teacher and has been with Mathnasium of Roslyn since its opening in 2011. She is excited to be a part of the Mathnasium staff so that she can continue to use her great variety of skills to help students catch up, accelerate and/or learn to love mathematics. She excels at diagnosing students' needs and finding exciting ways to demonstrate a principle. Her exuberant personality makes it easy for students to relax and enjoy their learning experience.

Freddie Beaman

Senior Instructor
Freddie has been working at Mathnasium since May 2013 and has been known to say that he "would work here until 2031." He graduated with a Psychology degree from Queens College and is currently on track to do his post-graduate work in Education (a field he fell in love with after tutoring his classmates in math as an undergraduate). His motivation to help students has manifested itself in inventing tools for learning difficult concepts, as well as puzzles and games for everyone. Freddie was a finalist of the 2018 Mathnasium Instructor of the Year competition.

Suneet Jain

Lead Instructor
With a Master’s in Math Education from Columbia University, Suneet started his journey as an educator by tutoring math in his college. After graduating with a BS in Engineering, he joined Democracy Prep High School in Manhattan as a Math Teacher, and Herricks High School as a Student Teacher. Throughout this time, Suneet continued to work as a Lead Instructor at Mathnasium of Roslyn. He has tremendous confidence in the Mathnasium Method and has steered over three hundred students to excel in math. With 10 years of cumulative professional and educational experience in teaching math to a wide age group of students, Suneet firmly believes that every child can succeed in math if taught the right way.

Megha Schmalzle

Math was Megha's favorite subject growing up and she has been teaching kids math since she was in high school. She believes any student can develop their math skills with engaging guidance and consistent practice. As a current medical student at The New York Institute of Technology College of Osteopathic Medicine, she likes learning about the applications of math in the real world, especially in the sciences and healthcare. She is grateful to be a part of the Mathnasium team and hopes her enthusiasm for math motivates students to reach their full potential.

Matthew Lutchmidat

Matthew graduated from Bayside High School and is currently a student at Stony Brook University. He discovered his love for math in elementary school. During that time he found himself to be advanced in the subject and wanted to help his fellow classmates succeed. This led to his desire to tutor and help as many people as he possibly could. Matthew is ecstatic to be part of the Mathnasium team and plans to share all his knowledge with the terrific students as well as inspire them to do their best!

Ken Sukhram

Ken graduated from Queens High School for the Sciences at York College is currently a student at New York University, where he plans to pursue a degree in child and adolescent psychology. Growing up, Ken had always enjoyed math, with his favorite subject being statistics. However, he understands that not every student echoes that same sentiment. He hopes to encourage his students to approach math with an open mind, and he is proud to be a member of the Mathnasium team!

Joy Dolinak

Joy is a graduate student at Touro University, where she is studying physical therapy. Joy has always excelled at math, even having been a part of the Ardsley Mathnasium team before she moved to Long Island. Joy believes math is important in everyday life and wants to work with kids one day, which is why she is excited to be part of the Roslyn Mathnasium team.

Charles Smith

Charles was educated at Stony Brook University in Computer Science. He came to Mathnasium of Roslyn with almost ten years of prior experience working for Mathnasium. His professional background also includes multiple facets in the aquarium/pet industry, including retail management, and commercial display. He likes gardening, enjoying nature, bird watching, and maintaining his personal aquariums. He’s a self-proclaimed “science nerd,” with a pet interest in Evolution. Charles currently aspires to improve his piano skills, learn a third language, and write a memoir.

Lionel Ripert

Lionel is a retired educator who has spent approximately three decades teaching mathematics in High School and a few years as an adjunct professor in college. He has received a BS in Mathematics and was awarded an MA in Secondary Mathematics at Adelphi University. His decision to work at Mathnasium relies heavily upon the acknowledgement of its innovative approaches, pedagogies, and commitments to help students succeed in math. With his natural affinity for mathematics, he has embraced the instructor role without any hesitation in order to continue inspiring and assisting students to acquire requisite mathematical language skills that will allow them to understand and navigate through the modern and technological world in which we all live.

Sean Lim

Sean is a senior at Manhasset High school. Having returned to the U.S. from Korea in his first year of middle school, Sean struggled with English but excelled in math, and quickly fell in love with the subject. He found passion in tutoring and teaching math to his classmates and cousins and developing a dream of becoming a math professor. He is grateful for the opportunities as part of the Mathnasium team as he can help younger kids to find their passion in math like his teachers did for him.

Matthew Alonzo

Matthew is a senior at Cornell University majoring in Science and Technology studies. Matthew has always considered math his favorite subject; in high school he did math research and won a silver medal at the Al Kalfus Math Fair. Matthew loves sports, particularly the analytics side. He firmly believes that Moneyball is the greatest baseball movie of all time (with Major League as a close second).

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.

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
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