Coby Potischman

Coby Potischman

5.0(1 review)
Offers online services
Offers online services

About

I am a Northwestern University junior, studying journalism, political science, and mathematics, and I have a strong passion for math in all its forms. In addition to my extensive tutoring experience, I am an undergraduate teaching assistant at Northwestern’s Department of Mathematics for the academic year of 2023-24.

I have experience tutoring students ranging from ages 12 to 21, and covering algebra 1 and 2, trigonometry, pre-calculus, and calculus at both the Advanced Placement and collegiate levels.

I spent my freshman year at Connecticut College before transferring to Northwestern. I was the champion of the 2021 Connecticut College Integration Bee, the school’s premier calculus tournament, as well as their 2022 Math Olympiad, a proof-based tournament. In both cases, I defeated students of all years.

I’m thrilled to have been hired by Northwestern for the selective position of undergraduate teaching assistant for the coming academic year, for which I’m being trained to lead a weekly discussion section, hold office hours, and grade student work in one of our calculus courses. As such, I know what schools are looking for in students’ work and how to most quickly and efficiently improve.

The best part of mathematics, in my opinion, is the fact that for any concept, there are an infinite number of ways to approach it and learn about it. What I pride myself on as a tutor is finding that unique interpretation of the material that resonates with the student. Math shouldn't be about boring, rote memorization. Instead, it should be a beautiful and exciting medium to build problem-solving skills and sharpen our understanding of the world around us.


Highlights

1 employee
5 years in business
Serves Brooklyn , NY
Offers online services

Payment methods

Cash, Check, Venmo, Paypal, Apple Pay, Zelle

Social media


Specialties

Grade level

Middle school, High school, College / graduate school, Adult learner

Type of math

Algebra, Trigonometry, Pre-calculus, Calculus

Reviews

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MG

maya G.

Coby is an AMAZING tutor!! Ive had him as my tutor now for two quarters, Im currently a senior at Northwestern University, and without his help, I would not have been able to achieve the success Ive been able to in Calc 220-1 (Single-Variable Differential Calculus) and Calc 220-2 (Single-Variable Integral Calculus). Hes helped me not only solve problems but also understand material conceptually, hes able to teach like an actual professor because he can explain concepts and the reasons behind them so you can learn not only how to solve problems but how to better understand and conceptualize the material! He is also very flexible and has been able to meet with me multiple times a week even with my very busy schedule! He is enjoyable to be around and really cares about his tutees. He is also able to work with different age groups! He can help with AP Highschool Calculus, as well as college-level calculus! I would definitely highly recommend him! Thanks so much Coby!!!
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March 01, 2023

Frequently asked questions

The first step is always to get a breakdown of the material being covered, and the preferred learning style of the student.

When learning how to solve a problem, do they prefer to start from the ground up and derive all the tools, or do they prefer to memorize each tool from the top down? Do word problems make learning easier or harder? Might a geometric approach be preferable to an algebraic one?

Having an overall sense of what works best will let us hit the ground running!

I'm a sophomore at Northwestern University, majoring in mathematics and political science, and have worked with students on topics in algebra, pre-calculus, and calculus.

I have successfully taken full coursework in linear algebra, multivariable calculus, differential equations, real analysis, applied analysis, the Art of Problem Solving algebra and geometry course sequences, pre-calculus, and AP calculus.

I have also participated in the Putnam Competition and multiple other math olympiads, and was the champion of my school's annual integration bee.

I charge $50 an hour, with a lot of flexibility as to how long each session is.

I have worked with students in high school and college alike, covering topics anywhere from algebra 1 to calculus/

In June, I spent a week in Long Beach Island, New Jersey. We went there every summer when I was a kid, so returning for the first time in 10+ years was wonderful.

Look for someone who actually loves the material and does math in their free time! They'll bring so much energy and support to your session!


Services offered

Math