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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:

Center Director/OwnerScott Rubin, Center Director/Owner

Scott received his Bachelors in Finance from the State University of New York College at Buffalo. He then received his MBA in Management from Pace University. He has worked as a financial analyst on wall street with JPMorgan and other finance companies until he moved to Marin County. Scott has always had a passion for math. Starting at a young age he was constantly coming up with creative ways to solve math problems. In order to give back to the community he tutored math voluntarily at a high school in NYC. Scott enjoyed tutoring so much that he looked into changing careers and that is when he found Mathnasium, a perfect fit. Scott, his wife Christine and their maltipoo Mylos moved to Marin County in Jun 2012 to start a new life. The original plan was to open up a Mathnasium in or near NYC, but after visiting relatives in Tiburon they decided that was the place for them. Since then, Scott delayed opening his Mathnasium for a year in order to prepare for the big move. He spent that time tutoring at other Mathnasium's and spending 100's of hours learning the Mathnasium Method. Scott is a Mathnasium master certified center director. Someone who is master certified has received the highest certification level Mathnasium offers.

OwnerChristine Rubin, Center Director/Owner

Christine has a bachelor's degree in marketing and international business from NYU.





Colin DiGrazia, Assistant Center Director (2013-Present)

Colin used to be a private music instructor and was working towards his B.A. in Jazz Studies and Performance. After realizing that music was not his true calling, Colin was able to find his passion for Statistics and Probability. He also tutored Algebra and Statistics at the Santa Rosa Junior College.  Colin lived his whole life in Marin County.

Sebastian Brear, Lead Instructor (2015-Present)

Sebastian is currently a Sophomore at College of Marin after graduating from Tam High a semester early in 2016. He is currently taking Calculus III and is pursuing a Bachelors of Science in Electrical Engineering.

Eric Weinstock, Instructor (2013-Present)

Eric has been tutoring math since he was in the eighth grade (he was asked to tutor 7th graders).  After getting his MA from Columbia University he has worked as a teacher and tutor as well as stints in housing and corporate finance.  He has created an SAT preparation course and prepares students for all three sections of the exam.  He said, "I love teaching at Mathnasium.  The energy of both the students and the staff here is so positive and uplifting."

Cole Johnson, Instructor (2015-Present)

Cole is a Junior at Stanford Online High school.  He is a competitive fencer at the international level, and likes to tutor/mentor kids in fencing and math. 
Allie Burns, Instructor (2016-Present)
Allie is a Senior at Tam High, currently taking Calculus. She has found a passion for math and tutoring children through volunteering for Bridge the Gap College Prep and Romanian Children's Relief. In her free time she enjoys running for her school’s cross country and track and field team, and babysitting for kids in her neighborhood.
Alex Munter, Instructor (2016-Present)
Alex is a Junior at Tam High, currently taking Pre-Calculus.  He does fencing and enjoys math, science, and history very much. He also enjoys teaching and helping kids at Mathnasium.
Charles Szeman, Instructor (2017-Present)
Charles is a Sophmore at College of Marin. 
Lucas Rosevear, Instructor (2017-Present)
Lucas is a Junior at Tam High, currently taking Calculus. He likes writing, math and history. He very much enjoys both the students and teaching at Mathnasium. 
Coleman Morrow, Instructor (2017-Present)
Coleman is a Senior at Tam High, currently taking Calculus.  
Robert Donohue, Instructor (2017-Present)
Robert is a Senior at Tam High, currently taking Calculus 2.  He is interested in math and enjoys being able to help Mathnasium students work through tough problems. In his free time, Robert enjoys playing music, specifically guitar and piano, as well as spending time outdoors.
Zihao Wang, Instructor (2017-Present)
Zihao is a Senior at Tam High, currently taking Calculus 2.  He is interested in math and enjoys being able to help Mathnasium students work through problems. 
Annie Ye, Instructor (2017-Present)
Annie is a Junior at Tam High, currently taking honors Pre-Calculus. She really likes math and science. She also enjoys teaching and helping the kids at Mathnasium. 
Fran Cappelletti, Instructor (2017-Present)
Fran remembers struggling with math in middle school, but found success through focus and practice. He ended up with a BA in Mathematics and Economics from DePauw University. After some graduate work and teaching Econ 101 at the University of Illinois, he moved to the Bay Area, working as a Statistician and Research Analyst for many years, currently with the Taxpayer Advocate Service. He also volunteers as the Librarian for the Ross Historical Society/Jose Moya del Pino Library, writing about history, art and architecture. He enjoys his time at Mathnasium with students of all levels.
Mackenzie LeBuhn (2018-Present)
Mackenzie is a Sophmore at Tam High, currently taking Pre-Calculus.  She has loved math since preschool when her sister started teaching her easy math problems. She loves seeing how students progress and learn new skills through math and loves spending time with the kids at Mathnasium. 
Mark Ogden (2018-Present)
Mark is a Freshmen at Marin Catholic, currently taking honors Geometry.  He struggled at math when he first started at Mathnasium (as a student in 2015) but soon became a straight 'A' student. He hopes to work at Mathnasium throughout High School.
Oliver Febbo (2018-Present)
Oliver is a Junior at The Urban School of San Francisco, currently taking Functions. He loves learning and teaching math both to help others and to deepen his own understanding of the fundamentals.
Gavin Taub (2018-Present)
Gavin is a Junior at Branson High, currently taking Pre-Calculus.  He enjoys playing soccer and loving working at Mathnasium.  
Iso Schriever (2018-Present)
Iso is a Senior at Tam High , currently taking AP Statistics. Besides math, she also loves English and history, and with her international background she plans to study abroad after she graduates. She has always had a passion for learning and is excited to share that with Mathnasium students.
David Hampton (2018-Present)
David is a Senior at Tam High, currently taking AP Calculus. He can also be found playing lacrosse and soccer.
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