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Douglas Z.

Experienced Tutor for Math, Statistics, and Computer Science

Experienced Tutor for Math, Statistics, and Computer Science

$60/hour

  • 916 hours tutoring

  • Providence, RI 02904


See Douglas Z.’s schedule

Response time: 1 hour

About Douglas


Bio

I was a graduate student in mathematics at Caltech and a postdoc at Columbia University. I left academia to work in industry, but I enjoy teaching. I have written dozens of articles and a book on applying mathematics for general audiences. I'm working on a parent's guide to algebra and book on applying economics to improve environmentalism. I've tutored mathematics, statistics, economics, computer science, and programming since 2013 on other sites. My goal is to make the material make sen...

I was a graduate student in mathematics at Caltech and a postdoc at Columbia University. I left academia to work in industry, but I enjoy teaching. I have written dozens of articles and a book on applying mathematics for general audiences. I'm working on a parent's guide to algebra and book on applying economics to improve environmentalism. I've tutored mathematics, statistics, economics, computer science, and programming since 2013 on other sites.

My goal is to make the material make sense to you. Does it work? Sometimes. I had a 200:1 positive:negative review ratio. I'm constantly trying to improve.

As a graduate student and postdoc, I was a teaching assistant for and then taught calculus, linear algebra, combinatorics, probability, and multivariable calculus, among others. I also coached Caltech's Putnam team and I can help with contest mathematics. I usually tutor college students, but I have also tutored many high school students and a few graduate students.

I am available both for online and live lessons.


Education

New College
Mathematics
Caltech
PhD

Policies

  • Hourly rate: $60
  • Rate details: For some subjects, I charge $45/hour for online tutoring.
  • Tutor’s lessons: In-person and online
  • Travel policy: Within 5 miles of Providence, RI 02904
  • Lesson cancellation: 8 hours notice required
  • No background check

  • Your first lesson is backed by our Good Fit Guarantee

Schedule

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Subjects

Corporate Training

Statistics

Elementary Education

Elementary Math

Homeschool

Calculus,

Calculus

I have taught several different levels of calculus. I have applied it in areas like economics and machine learning. Calculus might be the subject I have tutored the most in the last few years.
Algebra 1, Algebra 2, Geometry, Prealgebra, Precalculus, SAT Math, Statistics

Math

Calculus,

Calculus

I have taught several different levels of calculus. I have applied it in areas like economics and machine learning. Calculus might be the subject I have tutored the most in the last few years.
Discrete Math,

Discrete Math

Combinatorics was one of my favorite subjects in college and I enjoyed taking three courses on it in the Budapest Semesters in Mathematics program. I wrote my senior thesis in combinatorial design theory. I took and was a TA for advanced combinatorics classes in graduate school. I have tutored students both for discrete math classes for computer science majors (covering things like Turing machines) and discrete mathematics classes which are alternatives to calculus (emphasizing things like proofs by induction and Euclid's algorithm).
Finite Math,

Finite Math

I have tutored many students in finite mathematics over the past four years. I have also tutored subjects that use the ideas covered in finite mathematics courses. I can help whether your finite mathematics course focuses on logic and set theory, probability and statistics, or linear programming.
Linear Algebra,

Linear Algebra

I used linear algebra throughout the core graduate classes in mathematics (abstract algebra, analysis, and topology/geometry). I apply linear algebra professionally within Machine Learning. I have tutored students both in calculation-based and proof-based linear algebra courses.
ACT Math, Algebra 1, Algebra 2, Geometry, Prealgebra, Precalculus, Probability, SAT Math, Statistics, Trigonometry

Most Popular

Calculus,

Calculus

I have taught several different levels of calculus. I have applied it in areas like economics and machine learning. Calculus might be the subject I have tutored the most in the last few years.
Algebra 1, Algebra 2, Geometry, Prealgebra, Precalculus, Statistics

Sports/Recreation

Poker

Poker

I used to play poker professionally, concentrating on Hold'em variants. I preferred to coach and coached many of the Sit-N-Go (SNG) players at the top of the Sharkscope leaderboards, including one player who went from not knowing whether a flush beat a straight to the dominant player on Full Tilt's medium stakes SNGs. I made dozens of instructional videos for StoxPoker (which merged with CardRunners) and PokerStrategy. I co-authored a book, The Math of Hold'em, aimed at poker players, covering mathematical aspects of poker strategy, analysis, and bankroll management. I wrote ICM Explorer, a program for investigating the Independent Chip Model of tournament equity.

Summer

Calculus,

Calculus

I have taught several different levels of calculus. I have applied it in areas like economics and machine learning. Calculus might be the subject I have tutored the most in the last few years.
Algebra 1, Algebra 2, GED, Geometry, SAT Math, Statistics

Test Preparation

ACT Math, GED, SAT Math

Ratings and Reviews


Rating

5.0 (227 ratings)
5 star
(221)
4 star
(5)
3 star
(0)
2 star
(1)
1 star
(0)

Reviews

Amazing tutor, can make the most confusing concepts easy to understand

I had Douglas for Multivariable Calculus and Probability & Statistics, and he made every difficult concept ridiculously easy to understand, I was actually shocked at how quickly everything clicked for me through his tutoring.

Vincent, 2 lessons with Douglas

Very knowledgeable and great teacher

Douglas tutored my son in AP Calculus AB and he explained the concepts very clearly. My son said he was an excellent tutor and he understands slope fields much more. Thank you!

Jeannie, 1 lesson with Douglas

Outstanding experience

Save my time a lot. I’m thankful to find him to guide me through the semester. Thank you so much for the amazing help.

Shosho, 6 lessons with Douglas

Excellent teacher

Douglas has great patience, an immense reservoir of knowledge, and the ability to adapt it to the needs of student.

Eleanor, 8 lessons with Douglas

Knowledgeable and Friendly

He knew the matter really well and saved me a lot of time compared to other tutors. Highly recommend Douglas!

Lily, 1 lesson with Douglas

Great review from my Son

Helped him a lot, He has a better understanding at this point, need to schedule a weekly session so he stays ahead of the requirements. Daniel is much more confidant now.

Marc, 1 lesson with Douglas

Great lesson

Excellent lesson. Douglas makes it easy to comprehend, he explains the problem very clearly. I am very satisfied with his assistance. Thank you!

Giselle, 4 lessons with Douglas

Douglass taught well despite technical difficulties.

Douglass helped me with problems relating to Probability and Independence. He taught these problems effectively. There were, however, technical difficulties. For some reason, my audio and video did not work. Douglas could not see and hear me, but I could see and hear him. I would have gotten more out of the lesson if Douglas was able to see and hear me, but I do not think this technical difficulty was his fault. In addition, it was very kind of him to still tutor for an hour even though I was late for the lesson.

Kaitlin, 5 lessons with Douglas

Great!

Douglas takes his time and is a wonderful tutor! I specifically asked him about Discrete Mathematics, of which he was very knowledgable about. I would most definitely ask him for help again.

John, 2 lessons with Douglas

Knowledgeable and patient.

Knew his stuff and taught it well. Will be consulting him again. In short, it was an hour well spent.

Mika, 3 lessons with Douglas

$60/hour

Douglas Z.

$60/hour

  • No subscriptions or upfront payments

  • Only pay for the time you need

  • Find the right fit, or your first hour is free

Contact Douglas

Response time: 1 hour