Over 2000 tutoring hours

Marcus G.

New Canaan, CT


Prep ACT, SAT, GMAT, GRE w/ Stanford & Columbia Alumnus

5.0 average from 326 ratings
Amazing Teacher
— Jack, Stamford, CT on 12/6/15


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Contact Marcus

Stanford University
Columbia University


Stanford University (Physics)

Columbia University (MBA)

About Marcus

I specialize in test prep for ACT, SAT, PSAT, and GMAT. My training is rigorous and extremely effective. I'll help you work on the fundamental skills which you'll need for success. Be prepared to work!

I graduated (#1 GPA in class!) with my MBA from Columbia University in Finance and Economics. As an undergraduate, I studied at Stanford University.
I specialize in test prep for ACT, SAT, PSAT, and GMAT. My training is rigorous and extremely effective. I'll help you work on the fundamental Read more

36 hours notice required
Travel Radius
Travels within 1 miles of New Canaan, CT 06840
Background Check: Passed

"Amazing Teacher"

- Jack, Stamford, CT on 12/6/15

"Great tutor!"

- Charissa, Somers, NY on 10/31/16

"Excellent tutor"

- Jonathan, Stamford, CT on 12/11/15

"Marcus makes learning cool…and current…and fun!"

- Connie, New Canaan, CT on 8/12/15

"Great First session"

- Ellen, New Canaan, CT on 7/16/15

"Great process"

- Jeff, New Canaan, CT on 7/6/15

"Prepping for Collegiate Level Writing"

- Eric, New Canaan, CT on 6/12/15

"Outstanding Teacher, Tutor, and Friend"

- Daniel, New Canaan, CT on 11/16/13

"Great Tutor"

- Harry, Cross River, NY on 5/16/13

"Many Thanks"

- Gina, Armonk, NY on 4/3/13

"Patient, focused, flexible"

- Sam, New Canaan, CT on 3/29/13

"Great tutor"

- Janice, New Canaan, CT on 3/28/13

"A tutor who not only teaches but also inspires"

- Lakshmi, Westport, CT on 3/28/13

"Excellent Tutor"

- Megan, New Canaan, CT on 3/25/13

"Works great with kids!"

- Diana, New Canaan, CT on 3/20/13

"Very good and very patient!"

- Andrew, Inman, SC on 3/19/13

"Excellent tutor, very enthusiastic."

- Candice, Darien, CT on 3/16/13

"Excellent teacher with a wealth of knowledge and experience"

- Doug, Bridgeport, CT on 1/17/13

"Best Physics Tutor - Instantly Ready"

- Raghu, Darien, CT on 1/16/13
Test Preparation:
ACT English,
ACT Math,
ACT Reading,
SAT Reading

Approved subjects are in bold.

Approved subjects

In most cases, tutors gain approval in a subject by passing a proficiency exam. For some subject areas, like music and art, tutors submit written requests to demonstrate their proficiency to potential students. If a tutor is interested but not yet approved in a subject, the subject will appear in non-bold font. Tutors need to be approved in a subject prior to beginning lessons.

ACT English

I can help you raise your ACT English score. Unlike solo work in books (which we'll use as a tool) or group classes, I'll help you identify your biggest ACT testing weaknesses and then build a strategy to get the most points in the study time available.

ACT Math

If you need help raising your scores on the ACT or SAT, I can help. As an undergrad, I got a high SAT, earning entrance to Stanford University. For grad school, I beat the GMAT, earning a top 2% score. These tests are NOT IQ tests. They can be beaten with hard work and preparation.

ACT Reading

If you need help beating the ACT Reading, I can help. These tests are NOT IQ tests. They can be beaten if you know the tricks, the traps, and the proper study procedure. One of the keys is efficiency: most ACT study programs force you to study non-essential material which wastes time while not spending enough time on truly essential material. I'll help you focus and use your time on the study material which will make the biggest difference!


I scored 750 on the GMAT. So what, right? Here's the weird part: I only scored 450 on my first full-length GMAT practice test because I'd forgotten all of that high school math. How did I go from a 450 practice test to a 750 score (yes, a 300 point jump) on my first real test? I did it with my unique study method. Email me to arrange a lesson. If you don't live in the NY/CT area, no problem - I offer phone/internet lessons in a unique format for students outside of my local area.


The GRE is the most technical barrier which most people face as they consider a master's degree. If you majored in math as an undergraduate, you probably don't need me on the GRE math/quant section. But if you're a "poet" or a normal person and the math/quantitative section of the GRE gives you a math headache, I can help you raise your score much, much faster than studying by yourself or going to a mass production course where someone lectures at you in a room of 30 people.

Likewise, many people find the GRE verbal section difficult. Without the right study tips, you could study your whole life away without dramatically altering your score. Let me help you identify the key areas which will improve your verbal score so that your time is used efficiently.

SAT Math

The SAT Math is not a math test exactly. It's really a test of whether you know how to play the SAT Math game! I can help you play the game to WIN. Most people think their scores on the SAT Math are limited to their high school math grades. Not true! Even if you've struggled in your math classes, you can significantly raise your SAT Math score with the right training and the right coach. Let me help you reach your SAT Math potential so you can get into the college you deserve!

SAT Reading

I can help you put your best foot forward, potentially earning a SAT Reading score hundreds of points higher than you would have scored without assistance. I start with your present level and your goals and we make a plan. My training includes vocabulary, grammar, and specific test strategies to help you get your best possible score on the SAT Reading. If you already have books you're studying, we can use those OR we can use my materials. I look forward to helping you get the score you deserve!

Stanford University
Columbia University


Stanford University (Physics)

Columbia University (MBA)

Amazing Teacher — Marcus is an unbelievable Math Tutor. He is so full of energy and teaches math in a way that the student really understands the material. We are very lucky to have found him, because he has helped our son tremendously! We highly recommend him! ...

— Jack, Stamford, CT on 12/6/15

Hourly rate

Standard Hourly Rate: $150.00

Cancellation: 36 hours notice required

Travel policy

Marcus will travel within 1 miles of New Canaan, CT 06840.