David grew up in Boston, Paris, and Jerusalem. He started teaching at age eight, tutoring a friend in French for 10 cents an hour, and hasn't stopped since! David attended the University of Chicago where he majored in Mathematics and earned his room and board by tutoring high school and college students in math, science, writing, and Hebrew. He moved back to Cambridge to study Computer Science at Harvard University, where he also worked as a teaching fellow for nearly every course in the department, and taught the Quantitative Reasoning course.
David is currently a practicing statistician, mathematician, and teacher in the Cambridge Public School department, certified in Mathematics (grades 5-12) as well as instructional technology and ESL. He still finds time each week to tutor students in AP Statistics, Algebra, Geometry, Pre-Calculus, Calculus, and other related subjects.
Outside of teaching and tutoring, David's passions include puzzles and recreational mathematics, as embodied by the works of Martin Gardner and Lewis Carroll, and folk guitar.