Our Dedham Team - Mathnasium

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.

Math Centers / Dedham / Our Team

Leslie Rosenthal

Center Director

Leslie Rosenthal is an experienced math teacher with over ten years experience working in Massachusetts public middle and high schools, focusing on English Language Learners and Students with Disabilities. She studied Mathematics and Secondary Education at Vanderbilt University, and earned her Masters in Education from Boston University. Mrs. Rosenthal’s favorite class to teach is Pre-Algebra, but she loves showing students of all ages the connections between old and new material. She believes that students learn math best by talking, drawing, reasoning, and explaining to others. Mrs. Rosenthal lives in Westwood with her husband, toddler, and very cute dog Oreo.

Keith Tanner

Lead Instructor

Keith is our Lead Instructor responsible for student success and culture at our center! Keith graduated from Trinity College in Hartford, Connecticut with a degree in Mathematics. His biggest strength is his patience, which helps young students learn difficult, new topics! Keith loves working with students and making an impact in their lives by helping them love math like he does!

Isaac Chan

Instructor

Isaac is currently a Junior at Westwood High School. His favorite subjects are math and science--especially chemistry--and he wants to go into the field of medicine or computer science in the future. He also wants to advance the usefulness of artificial intelligence in people's daily lives. He has led kids in summer camps in the past and has been a math instructor for over a year and scored an 800 on the Math section of the SAT. He enjoys working with younger children and making a positive impact on their learning experience. Some of his hobbies include running, playing chess for his school team, and listening to electronic music. In his free time, he enjoys going on vacation with his family and hanging out with friends.

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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Dedham

Meet the Team at Mathnasium of Dedham