Structure that adapts as you improve
Practice adjusts to your proficiency across major GMAT question types and progressively pushes you toward higher-level performance.
Adaptive GMAT prep with deep explanations and guided support
Build GMAT skill with a system that adapts, teaches, and tracks your progress.
GMATstrategies.ai helps you prepare smarter with adaptive practice by question type, clear step-by-step lessons, AI follow-up help, analytics, and personal study tools that turn each question into lasting progress.
- Adaptive question selection
- Short and deep-dive explanations
- AI follow-up help
- Flashcards, notes, and review tools
- Progress analytics by question type
Why students stay with GS
Adaptive
difficulty and retry logic
Clear
strategy-first explanations
Supported
AI help plus human guidance
Measurable
analytics and review tools
Why students choose GS
Prep that teaches you how to think, not just what to click
GS is built for students who want structure, better explanations, and a more intelligent way to improve. The platform is designed to guide your practice, strengthen weak areas, and help you retain what you learn.
Strategies for every question family
Learn specific approaches for Quant, Data Insights, Critical Reasoning, and Reading Comprehension rather than relying on repetition alone.
Explanations designed to teach
Work through short or deep-dive explanation views, narrated lessons, and step-based logic that makes complex questions easier to understand.
AI help when you need clarification
Ask follow-up questions about explanations, get alternate summaries, and keep moving instead of getting stuck.
Analysis that shows real progress
Track accuracy, time spent, improvement by question type, and how well you are correcting past mistakes.
Study tools that build retention
Save notes, create flashcards, keep a journal, bookmark explanations, and review the concepts you still need to learn.
Structure and strategies
Comprehensive lessons that break hard problems into simpler steps
GS is positioned around the idea that good preparation is guided. Students need more than volume. They need a structure that adapts, strategies that transfer, and explanations that reduce confusion instead of creating more of it.
- Adaptive practice by question type
- Step-by-step concept teaching
- Recaps that reinforce key takeaways
- Pro tips, shortcuts, and time-management guidance
- Question-type-specific strategies for Quant, DI, CR, and RC
Explanation experience
See where students actually learn
Explanations are where GS can stand apart. The study flow supports deep review, AI clarification, and reusable study artifacts so students can learn from every question instead of just checking the correct answer.
Explain the logic
Show how Quant, Verbal, and Data Insights concepts are applied step by step.
Ask AI along the way
Let students ask follow-up questions when a step or concept still does not click.
Turn explanations into review assets
Create summaries, save notes, and build flashcards directly from the learning flow.
How it works
From first question to stronger performance
Start at your level
GS adapts to your current proficiency so you can begin with the right level of challenge.
Learn the reasoning
Use strategy-driven lessons, explanation views, narration, and AI follow-up help to build understanding.
Track and strengthen
Review analytics, revisit weak spots, and keep building skill with tools that help you retain what you learn.
Analysis
Detailed progress views that show what is improving and what still needs work
Students should be able to understand their strengths, weaknesses, and study habits. GS supports a more useful view of performance than simple right-or-wrong counts.
Performance by question type
Track progress across Quant, Critical Reasoning, Reading Comprehension, Data Sufficiency, and Data Insights categories.
Accuracy plus time spent
See not only how often you are correct, but where your time is going across questions and explanations.
Recovery on missed questions
Measure how effectively you are turning earlier mistakes into later mastery.
Study habits that compound
Review total active hours and weekly momentum so your preparation stays intentional.
About William and GS
Serious prep with optional expert support
GMATstrategies.ai is built on my own years of teaching, tutoring, and refining methods for helping students raise scores. The platform is designed for independent study, but it also leaves room for higher-touch guidance when students want expert help.
7,500+
GMAT lessons I have personally taught and studied with students
300,000+
practice questions I have personally worked through with students
14
top business schools represented by students I have helped prepare
- Reach out with questions, comments, or concerns
- Get help with difficult practice questions
- Ask for guidance on your broader study plan
- Explore tutoring and consultation options
Harvard Business School
Stanford GSB
Wharton
Chicago Booth
Columbia
Kellogg
Berkeley Haas
NYU Stern
UCLA Anderson
Oxford
Reviews
What students have said about working with William
These reviews reflect tutoring experiences across GMAT and other related exams, and they speak to the teaching style and study system behind GS.
An Absolute Game Changer!
William did not have it easy trying to help me study for the GMAT! He had to go back to the beginning on a lot of math techniques but his program with both visual explanation and being able to talk your through it is the only reason I feel I am starting to regain some knowledge of math, and a better understanding of English!
Sarah, 9 lessons with WilliamBill is a phenomenal tutor!
As someone who had taken the Manhattan GMAT course, I was hesitant to try a tutor in fear of re-learning what I had already learned. However, Bill was able to adapt to my needs and tailor me to the harder questions in his program. He is incredibly patient, intelligent, and adaptable. What I appreciate most about him is his constant efforts at improving and tailoring his program to your needs. He was constantly evolving his system to best suit his students needs and was incredibly receptive to feedback. My score improved nearly 100 points under his tutelage. I highly recommend him to anyone, regardless if you have taken a course already. He was definitely worth the investment and I consider him a tutor, mentor, and friend!
Lynn, 29 lessons with WilliamGreat tutor!
William has been able to identify my key weaknesses that has helped me make serious improvements in my GMAT capabilities.
Ian, 13 lessons with WilliamGreat tutor and very attentive to student's needs
William is a very patient tutor who explains things according to the student's pace. He is incredibly smart and really understands what he's talking about. Choose him if you have been searching for the perfect tutor for you GMAT preparation!
Freya, 1 lesson with WilliamImproved my score!
William helped me improve my score 80 points. I was very pleased with the results. I had been struggling on improving but it all paid off. I am thankful I found him.
Vivian, 27 lessons with WilliamGreat GMAT Tutor
Bill worked with me for a total of 30 hours and was always flexible with my work and personal schedule. About a year ago, I had taken the in-person Manhattan GMAT course, which is supposed to be the top GMAT program. After I completed this course, I took the GMAT a couple times but never reached my target score. Bill was understanding of my needs and weaknesses and he patiently worked to help improve my math percentile from a 36% to 63%. He provided weekly study guides and practice questions. I can't thank him enough and would recommend Bill to any student looking for math or verbal help, especially those looking for an engaging and intelligent GMAT tutor.
Sarah, 14 lessons with WilliamExcellent listening and problem-solving.
William B., the Access tutor, listened carefully to what my goals were, analyzed what I had done on Access, and then suggested several approaches that cleared my problems up for me. He was intuitive and attentive, and he is certainly extremely knowledgeable with Access. I would recommend him unreservedly.
Fred, 1 lesson with WilliamGreat Experience!
William tutored me in Access and I was very happy with my experience. He is very kind, helpful and patient. He took his time to explain the process and applications and made me feel very comfortable. I will be going back for more tutoring. I highly recommend him!
Nilma, 2 lessons with WilliamGreat tutor, clear and concise
William helped me with a couple of Microsoft Access assignments at a college class, he was very insightful, helpful, and easy to communicate with. I'd definitely recommend him!
Rocky, 3 lessons with WilliamBrilliant and Patient Tutor
What I like about William is his straightforward and warm approach. I had been taking the Blueprint LSAT online course for almost six months with no improvement in score. After working with William for three weeks, I feel more confidence and knowledgeable about the different question types and why they are right or wrong. My practice scores are steadily increasing and after starting off in the 130s, I am now testing in the 150s. He is a kind and brilliant man who is patient and understanding. He doesn't judge you or make you feel small for mistakes.
Shaunita, 12 lessons with Williamvery knowledgeable and high quality tutor!
William is an exceptional GMAT tutor who not only knows what he is doing, but has a very sophisticated lesson plan that I have not seen before. William is able to hone in on questions based on difficulty type and scale up difficulty as needed. Really knows his methodologies so it's not only about how to do a problem but why certain strategies work and don't work.
Michael, 8 lessons with WilliamGreat Lesson!
After just one lesson I am really starting to feel like I understand where I am going wrong with the GMAT. Thanks William!
Alexandria, 13 lessons with WilliamPatient tutor with great impressive online question bank!
I had a month to get my GMAT quant score up. I was testing a 39-40 and in just a month working with William and going through practice questions in his online question bank, I was able to raise my score to a 47. If you're willing to put in the time and study hard, William can definitely help you improve.
Adeela, 10 lessons with WilliamFirst Session Review
William is helping me analyze data sufficiency, probability, and reading comprehension problems. He is very helpful in breaking everything down to steps that are easy to understand. He also sends cues after every lesson to review. Overall, extremely helpful.
Angela, 4 lessons with WilliamVery Patient
Once again we had a great session. He is very patient and explains the reason for certain answers very well.
Brandon, 5 lessons with WilliamVery to the point
Jumped right into problem solving and discussed any problem areas at length. Each session is packed with problem solving and after 2 hours I feel like a lot has been accomplished. Recommend William for anyone who has a working knowledge of the basics, but who needs repetition and deeper knowledge of the processes or the logic behind the answers.
Alexis, 27 lessons with WilliamHighly recommend!
Bill has a very systematic way of figuring out how best to help someone preparing for the GMAT. I would highly recommend Bill to anyone looking for an excellent tutor.
Rasmussen, 3 lessons with WilliamGreat System
William did a great job explaining material over the one lesson we had. Certainly a good fit for anyone looking to improve GMAT score.
Andrew, 1 lesson with WilliamGreat tutor for rusty students
After 4.5 hours of one-on-one lessons with William I was able to raise my GMAT score 70 points. Worth every penny.
Brian, 3 lessons with WilliamExactly What I Needed, Just in Time for the Exam
William has a practiced, methodical system in place to improve your score. He takes you where you are and develops your skill from there. I went from a Manhattan Prep practice test low score of 630 to a test day score of 730. His explanations offer shortcuts and insights I never encountered in other resources. After 4 weeks of these lessons and completing the homework, I scored 730 on test day.
Zach, 8 lessons with WilliamEfficient and disciplined tutor for GMAT Quant - RESULTS!!
William has a really useful bespoke system for diagnosing and addressing weak areas in GMAT. He helped me move from 39 to 48 on Quant in two weeks. An insane improvement made possible by William's streamlined approach.
Thomas, 6 lessons with WilliamVery patient
Has a great platform that customizes the work according to your level in each section of the exam. The platform also allows you to go back to your lessons and make some practice questions.
Diego, 29 lessons with WilliamBest tutor I've ever had.
William is an excellent tutor. He goes out of his way to make sure I understand each problem before moving on. William has incredibly effective teaching methods, including reviewing and practicing problems as homework. My practice tests have improved significantly since I began tutoring with William. Highly recommend.
Ryan, 8 lessons with WilliamExcellent GMAT Platform
William is a very patient and knowledgeable teacher. He allows you to utilize an efficient and effective study plan to supplement your own. I have had several sessions with him and would highly recommend him.
Evan, 9 lessons with WilliamExcellent tutor with real GMAT knowledge and individually tailored lessons
I took about a dozen lessons with William over the course of two months, and he helped me pull my GMAT score up from 660 to 710. He tailors the questions you receive so that they are appropriately challenging. He has great insight and tips for the GMAT, and I doubt there is a better instructor out there.
John, 10 lessons with WilliamGreat process for helping you focus on the areas you need help the most
I worked with William over the period of several months. He helped me significantly improve both my quant and verbal scores helping me achieve a higher score than I was even targeting. William is patient and flexible, willing to accommodate your needs and requests and work around your schedule.
Ryan, 25 lessons with WilliamPatient and experienced tutor
I recently tutored with William for my GMAT and was stuck around the 650 range. With a little over a month's work I was able to crack 700 with his guidance. The program is extremely useful and keeps an error log of your incorrect answers and prompts you to answer the questions again after a certain period of time. It's basically a self-built study guide catered to you.
Chris, 19 lessons with WilliamIntuitive and Clear Tutor
I worked with William for nearly six months on GMAT prep. Through his explanation of key principles and knowledge of the GMAT strategy necessary to achieve a high score, I raised my score by 180 points. The value of his instruction cannot be overstated.
Justin, 41 lessons with WilliamExperienced and Knowledgable
William tutored me for the GMAT over the course of little over 2 months. His lesson structure and practical approach enabled me to rapidly identify and deal with gaps in my knowledge and skill set, while challenging me using questions set at an appropriate level of difficulty to help raise my skill level. I ended up scoring a 770 out of 800 on the GMAT.
Milan, 11 lessons with WilliamProfessional. Encouraging. All-Around Excellent
I worked with William for 3 months to help me improve my GRE math score. William gave me the foundational knowledge and confidence to know that I was tackling my weaknesses in the right way. He's an excellent communicator who cares about his students.
Val, 14 lessons with WilliamKnowledgeable and Experienced Tutor
William is a terrific GMAT tutor. After a couple of months of work together, he helped me raise my score by 70 points and achieve my goal of scoring in the 700s. His proprietary website adjusts the material and content tested in real time based off of our lessons. With each official practice test, my scores increased, proving the success of the program.
Yasmine, 16 lessons with WilliamExcellent Tutor
William has a strong, data-driven system for teaching and reinforcing the underlying principles required to be successful on the Executive Assessment. My target score was 150, and I got a 153. I highly recommend William.
Ryan, 13 lessons with WilliamExcellent GMAT/Executive Assessment Tutor
William was a terrific tutor in all subject matters for the GMAT and Executive Assessment, particularly in the quant sections. I had not reviewed any of the material in close to a decade and William was able to get me back up to speed very quickly.
Daniel, 14 lessons with WilliamGreat Tutor!
William is patient and works with you all through the process. You can't go wrong if you pick him as your tutor. I am currently taking his help for the EA and his approach is already showing improvements.
Jagan, 7 lessons with WilliamReady to study with more structure and less guesswork?