I help students improve their test scores throughOne-On-One Tutoring

Since 1999, I’ve helped over 4,000 students in the Greater Boston area master the SAT, ACT, PSAT, SSAT, ISEE, GRE, and GMAT. I can help you, too.

Book a Free Consultation

Learn more

Check out our 5-star Google Reviews!

Are You Struggling With...

Low test scores on your college entrance exams or in school

OK scores that don’t quite hit the mark

Countless hours of studying without any positive results

A lack of connection between you and your tutor or test prep class

Wasting money and not seeing any results

Tutors who don't understand your unique strengths and weaknesses and have no plan to improve your score

Personalized tutoring and test prep programs for your student

In today’s hypercompetitive academic world, there are countless tutors and test prep companies claiming to have the latest and greatest test hack to get you a perfect score. And if you’ve fallen for the marketing hype and spin (like we all have), you’ve probably found yourself frustrated with trying different classes or private tutors that don’t deliver the results you’re looking for.

Test prep is not a one-size-fits-all solution, so that’s why Cornerstone Test Prep and Tutoring in Framingham, MA focuses on personalized tutoring and test prep programs that actually get the results you’ve always wanted: scores that get you into your top-choice school.

Book A Free Consultation

Woman in Yellow Shirt Writing on White Paper

man holding the back of his head while smiling near brick wall

Art with his daughter, Maya

Hi, I'm Art Clay!

I've always had a knack for taking tests. That’s because I understand how both the test makers and the test takers think. I’ve analyzed thousands of test questions and know all the traps the test makers are expecting you to fall for. I also know all the content and strategies that you - the test taker - must learn in order to master these tests.

Since 1999, I’ve taught over 4,000 students in the Greater Boston area and am one of the top-rated test prep tutors. During our one-on-one lessons, I’ll teach you how to avoid common mistakes that can destroy your test score and I’ll give you the tools to attack each question like a seasoned pro. Let’s beat the test makers at their own game and get you the score you need!

How We Can Help You

At Cornerstone Test Prep and Tutoring, we know students want to achieve their test score goals so that they feel confident about their college prospects and get into a top-tier school. We also know parents want the relief of knowing their child is successfully on the path to achieving those goals.

The problem, of course, is low or “just below” test scores. They cause stress, frustration, anxiety, and disappointment for students and parents alike. After all, you work hard in school, you participate in extracurricular activities, and you serve and give back to your community. But these standardized tests feel like a roadblock to success.

That’s why we’re here: to help you break through that barrier and get the scores you need. Together, we’ll turn this whole test-taking journey into an enjoyable experience rather than a daunting obstacle. So, let’s get started!

woman in black and white sweater sitting by the table

It's easy to get started

Book a free consultation call

Create a personalized one-on-one tutoring program

Watch your progress soar - starting with our first lesson!

Book A Free Consultation

Thousands of satisfied students can’t be wrong

23

Years experience tutoring

5

Average Google rating based on 24+ reviews

100%

Students who continue after their first lesson

200+

Students accepted to Ivy League schools

What our clients have to say

Cornerstone Test Prep and Tutoring

4.9

Based on 58 reviews

review us on

Annette Fang

00:31 06 Feb 25

Great experience!! We are coming back for tutoring at Cornerstone with our youngest son. So happy to have found Art—his unique strategy of analyzing SAT scores according to the expected test speed and the difficulty of the question (and section) really works. The targeted help allowed our older two children to significantly increase their scores. The efficiency is amazing, a few lessons are enough to see improvements. Individualized tutoring turned out to be really worth it and made a huge difference in the college application process. Highly recommended!!!

Natalia Rosenzweig

00:25 15 Jan 25

Cornerstone first made sure which test I was stronger in: ACT or SAT. I was definitely better on the ACT, so that's what we worked on. I boosted my composite score by 3 points on my first attempt and increased my English score by 7 points. This is going to help so much for the colleges that I'm applying to. Thank you!!!

Stephen Ball

18:31 07 Jan 25

Art provides phenomenal tutoring for SAT and ACT prep. He starts with a thoughtful approach focused on identifying which test best suits each student. Using his proprietary assessment tool, he's able to save families valuable time and money by steering students to the right test from the very beginning. Also, although Art himself is a brilliant M.I.T. alum, he is tremendously approachable and down-to-earth. Whether they're A students or C students, Art equips students with the knowledge and skills they need to perform well. As a dad himself, Art's been through the college admissions process with his own kids, so he knows how anxiety-inducing standardized test prep can be. Art's services are well worth the investment -- potentially saving families thousands of dollars through scholarships for strong performance. I highly recommend Cornerstone Test Prep and Tutoring.

James Cardoza

21:17 01 Jan 25

Mr. Clay is an absolute lifesaver! His approach to teaching is so clear and effective. He broke down complex concepts into easy-to-understand steps and provided plenty of practice problems that really helped solidify my daughter’s understanding.What I appreciated most was his patience and encouragement. He never made her feel bad for not understanding something and was always willing to go the extra mile to help her grasp the abstract problems and material.

Aneesa Hazarika

02:16 09 Dec 24

Arthur's guidance was very useful, especially in using the demos calculator to solve regression related math problems. Additionally, his platform provided a series of practice tests that allowed me to track my progress and contributed to the 800 I received in the math section on my first attempt.

Fred

00:10 26 Jul 24

Cornerstone Test Prep for preparation for standardised tests like the SAT and ACT. Art is very accommodating, helpful, and friendly, and his facility is well kempt and pleasant to be in. Through diagnostics, Art gave helpful pointers and advice on the benefits of the SAT and ACT to help make the right decision on which to prepare for/take, and provides a forecast for the score increase he can help you attain. Art also provides useful resources and tutorials to take full advantage of features on the tests (like the SAT's desmos) along with his direct tutoring. Overall, I'm happy to be getting help from Art in preparation for college admission standardised tests.

Ragav J

23:05 29 May 24

I highly recommend this service! So far, throughout my time working with Art, I have experienced a remarkable 110-point improvement in my SATs (this was done in under a month). This was achieved through personalized and effective teaching methods. Additionally, I learned how to utilize Desmos for math, which SIGNIFICANTLY improved my math score as well. The sessions were always engaging, informative, and tailored to my specific needs. I'm very grateful for the support and dedication provided by Art, and I can't wait to continue working with him!

Steven Simonfay

17:27 12 May 24

Arthur Clay and Cornerstone Test Prep is the REAL DEAL. While working with Cornerstone, my SAT score has shot up 300 points. Cornerstone shows each of its students exclusive strategies and shortcuts to crush any standardized test. Arthur Clay is an expert in demos for the math section of the SAT. At the moment I'm in top 1% for math, and it's all thanks to him. Additionally, Arthur connects with each of his students on a deeper level. He never fails to make my day, and he makes our 90-minute sessions feel like 20 minutes. If you want to perform well on the SAT or ACT, I would highly recommend him.

Tracy Sockalosky

04:34 05 Feb 24

Art is fantastic. As an educator I can attest that Art is a great teacher and does it in a way that creates confidence in his students. So grateful to him and ready for him to begin his work with our next test taker in the family. Thank you, Art.

Srini Srini

22:09 11 Jan 24

My daughter recently had the privilege of working with Art for SAT .The coaching session was tailored to my daughter’s needs.Art demonstrated a deep understanding of the SAT exam structure ,content, and effective test-taking strategies.My daughter had a 200 points improvement in Math . I wholeheartedly recommend Art to anyone seeking comprehensive and personalized preparation for the SAT.Thank you for your exceptional guidance and unwavering support.

Liam Curley

12:13 18 Dec 23

Art is awesome! Through rigorous work I brought my SAT score up 300 points! I have also been going to Art for Pre Calculus and AP stats work lessons and I’m understanding the subjects better than ever.

mariana gr

00:28 30 Nov 23

I first started at Cornerstone doing their ACT/Sat diagnostic. That was really helpful because it allowed me to focus on the test I was stronger in which was the ACT. After several months of tutoring not only did Cornerstone help improve my ACT scores but I now currently have straight A's and have gotten into one of my top schools. I have referred my friends to Cornerstone and they have also had similar experiences.

Rohith Ashok

13:33 19 Nov 23

Art was a wonderful tutor for my daughter. The SAT prep classes were tailored to what she needed, and she ended up with a great score in the 1500’s. My daughter enjoyed having Art as a tutor.

Mason Arditi

05:05 02 Nov 23

I had a fantastic experience with Art and Cornerstone Prep. When I first came to him, I had a score of 1430. And through rigorous technique-training and learning truly how to take the test, I received a 1550! Art consistently went out of the way to meet my financial needs and offered several free sessions. He really goes the extra mile for his students and I highly recommend his tutoring to any student out there who wants a killer SAT score. Thanks, Art!

Leo Davidson

23:40 11 Oct 23

Art was great in helping me get killer SSAT scores, and a great grade in math. It helped me get into all my top choice schools. I still use him to this day.

M F

21:40 11 Oct 23

Art did an exceptional job with our daughter. Her ACT score rose significantly after working with him. He is a great teacher and very flexible in scheduling sessions. We look forward working with him again with another child.

Loren Zidell

22:34 30 Sep 23

Art is amazing! He's been incredibly helpful in tutoring and mentoring my son, Mason, for his SAT prep. We came to him with a 690 Math score on the SAT and Art has helped him bring it up all the way to 780! Art is an excellent tutor and cares deeply about his students, as he frequently offered complementary review sessions to meet our budget. My son and I will highly recommend Art and Cornerstone Test Prep to any prospective families!

Jodi MacKinnon

16:53 29 Aug 23

Art is simply the best tutor there is! Three of my kids have used him to prepare for the SAT/ACT. He is patient and each one of them loved working with him. His ability to motivate and inspire his students is remarkable. Art was able to get my kids to approach test preparation with enthusiasm, and as a result they felt prepared and confident going into the tests. I wholeheartedly recommend Art to any parent looking for an extraordinary SAT tutor who consistently unlocks his student's full potential.

L F

22:49 30 May 23

Art was an amazing, knowledgable, instructive, and truly caring tutor, who not only made each lesson instructive but also fun. I worked with him for 4 months and he helped me increase my score by over 200 points. He was extremely encouraging and optimistic throughout each lesson which gave me the confidence I needed to perform well on test day. I would definitely recommend tutoring from Art as he gave me the key strategies, formulas, and knowledge I needed to perform my best. Art truly cares how his students perform and he structures the lessons to suit the individual needs of his student, while instilling the most important thing, confidence, so that they can crush the test. It was a pleasure to work with him.

Ned Samuelson

19:22 16 May 23

Let me start by saying that Art Clay is not only the absolute best tutor but he's just an incredible human being. If you need to improve your test scores there is absolutely nobody better. I will admit, I was a bit skeptical before I met him, but after just one session I knew I had the right guy. To be clear, I really wasn't a bad test taker, I just wasn't great. Here's the thing about Art, he has taken the SAT's (and gotten a perfect score) many times! He knows the tests inside and out, and with these tests, knowing the details really matters. I started out with OK scores, but was in the process of earning an athletic scholarship to Duke University and I needed to bump up my test scores to guarantee it. This was a high anxiety situation for me because not only was my dream school on the line but also a full scholarship. Art was able to really zero in on the areas where I needed to improve to maximize my score. In addition to pinpointing where I could see the most improvement in my scores, Art also taught me a ton of tricks to TAKING the test. My goal was to improve my overall score by about 100 points. I took the test one time after working with Art and I improved my scores by over 100 points on each section! There is absolutely no way I would have been able to do that without Art. The other thing about Art that's important to mention is that he genuinely cares about each of his students. I had a busy schedule and Art never once said "no" to me. If I needed an extra session on short notice, Art was there. If I wanted to meet on a Saturday night or a Sunday morning, Art was there. When I was nervous about taking the test, Art was the calming influence I needed. After graduating from Duke I decided to go for a Masters and had to take the GRE. Yet again, there was Art to help me. And yet again, I got a great score that allowed me to go to Georgetown for my dream masters program. I owe Art Clay a huge debt of gratitude for everything he has done for me and my family!

Zahra Sheikh

19:00 14 May 23

My daughter came in needing something to make her score get from good to great. Arthur did a great job fine tuning her test taking skills by teaching her very helpful tips and tricks to take the test in the most efficient manner. She ended up scoring a 1560 on her first try taking the exam during the beginning of her junior year. We would definitely recommend Arthur for anyone wanting to give their kids an extra edge to achieve their full potential in this exam.

‹

›