John Zaborskis and his team did an excellent job preparing my daughter to take the TACHs exam. She looked forward to the lessons and she not only go into her top three schools, but she received a full scholarship to her #1 choice and entrance into the honors programs in #2 and #3. I highly recommend this program!

Jennifer Wilson
9/23/2022

I cannot say enough good about John. He will challenge your child more than they likely have been been but he does it in a way his students will rise to that challenge. My child made honors on all three of her choices and received full scholarships to both Hill and Sea, thanks to John's preparation strategy.

Dave Clark
1/17/2020
John is an excellent tutor. My son got into all of his High School choices and received scholarship offers. John’s classes made the material accessible and he kept up my son’s motivation. Thank you John for the great work

moira nascimento
4/21/2020

Used John for Tachs tutor. Great tutor and great person.He has several great recommendations for tutors if he isn't available.

Darlene Esposito
2/13/2018
Engaged Master of Chemistry for the TACHS, HSPT and SHSAT exams. They are a helpful and reasonably priced tutoring agency. Highly recommend.

Andrea Pags
2/11/2023

Very happy with my son’s tutoring experience with John. It is because of John’s knowledge, expertise and ability to instruct students for examinations that truly prepared my son for the difficult entrance examinations. My son was accepted into the best Catholic high school as well as receiving scholarships to other schools he applied to.

Ann
2/29/2020
Highly recommend! My son was tutored by John for preparation for the TACHS exam. He was part of a group tutoring session, however, all of the students still got a very personalized tutoring experience. John was very open to the students asking questions, and would help the students with anything that they needed during the session. At one point, I was concerned with my son’s progress, and John took the time to have a long conversation with me to discuss ways in which we can help my son further. He then implement those changes, and the end result was my son doing very well on the exam and getting accepted into his high school choices. John is very friendly, helpful, interactive with the students, and very responsive to questions, not only questions my son had, but myself as well.

Alaina Signorastri
2/26/2021

John came highly recommended to me and did a great job preparing my son for the TACHS and scholarship tests he has taken. My son received full scholarships to both Xaverian and St Peters. He also received scholarship money towards Xavier and Staten Island Academy. I already have and will continue to recommend John to others.

Ms. Franzreb
2/13/2018
Five stars is an understatement - it should be 10 stars on every aspect of this business - quality, service. value, professionalism, good communication all are above and beyond. The attention given to my son is astonishing. Taking a chance by reading reviews is well worth it. Your child's education is priceless, and if you want your child to excel to their best possible potential this is the place. Mr. Zaborskis, Kate, everyone involved has one intention - and its the best interest of your child's education. Just remarkable on every level. The patience John has makes all the difference, and it's all the time. John's interaction with each child, and as a group keeps the kids interested, and involved, and the results show. If you want to see a difference in your child's school work, and test grades, this is the place. Contact Master of Chemistry and schedule time - it will be the best choice you can make towards your child's education.

Nadine Salmieri
1/31/2022

I cannot recommend John and team enough for HSPT prep. My son received full scholarships to his three top High School picks and I appreciated the professionalism and class flexibility that the program provided. We will also be using them for SAT prep when the time comes!

B Liam
3/02/2022
Michael D'Ambrose was an excellent tutor for preparation for the high school testing. Michael worked with my son for 12 months on a weekly basis to prepare for the SHSAT, HSPT and SSAT. Michael was always prompt and often went over the hour time slot. Since the SHSAT covers math that 7th graders haven't learned yet, Michael was instrumental in getting Evan up to speed. As a PhD candidate in chemical engineering, Michael really understands the subject and had excellent success teaching algebra to him. We ended the process with 3 great high school options: Brooklyn Technical High School, Xavier High School Ignatius Scholars Program, and 2 NYC private, independent day schools. We are very pleased with the results and thank John and his team for all of their support, communication and guidance along the way.

Cynthia LaCaprucia Taylor
3/28/2017

John is lit

Soph M
9/18/2016
John helped prepare my son for high school entrance exams. He was knowledgeable about the material on the tests and strategies for taking the exams. My son was accepted to Regis and Staten Island Tech. He also received scholarships to Xaverian, Xavier, and St.Peter's High School. I would definitely recommend John.

Susan Jaenicke
3/08/2017

John’s tutoring was instrumental in getting my son a full scholarship offer to Farrell HS, and an offer to Staten Island Tech. His methods are helpful to my son and are the reason for my son’s success. He also tutors my daughter for SAT. I highly recommend his services.

Justin Chiu
3/21/2020
John is a great tutor. My sister got a full scholarship and was accepted into her top 3 schools with his help.

Juan Abel Cruz
2/26/2021

We are so lucky to have found Master of Chemistry. We used the MOC tutoring lessons for the TACHS exam and are very satisfied with their staff and services. MOC worked with us every step of the way and modified our son's tutoring whenever he needed more help. Our son is a different learner and needed more one-on-one in math. His math tutor, Ireen, was so patient and persistent with him and gave him excellent skill sets for the test. His tests results were very good (better than I anticipated!) and he was accepted into a fantastic high school.I would absolutely recommend Master of Chemistry tutoring to anyone serious about entrance exam testing. Best of luck to everyone!

Julie Sankey
2/26/2021
John and his team are excellent! My daughter Emma has excelled in her academia with the support she has received. The TACHS test preparation tests and tuitoring that is provided gave my daughter full confidence that she could achieve a great score and she certainly did! We are thankful, happy and blessed to have been recommended to use John and his services. Everyone on his team will work diligently to ensure that your child(ren) feel comfortable and ready with such a challenging test to take.

Alex Secaira
2/08/2022

Great tutor, got me a full scholarship to Sea and Farrell, and got me entrance into SI Tech

Joseph Afflitto
3/21/2020
John came very well reccomended. His process included evaluation, tutoring and re- evaluation which enabled us to really understand my daughter's strenghths, weaknesses and progress as she prepared for high school exams. John made sure my daughter was paired with study groups that were a good fit for what she needed to focus on academically. She was challanged, motivated, and had fun with John and her peers while learning. By exam time she was well prepared and very confident . The fruits her and John's efforts were realized this week with acceptances to all 3 TACHs choices, including a full scholarship to St. Joseph Hill Academy and partial scholarship to Xaverian. Congrats to both and thank you to John. Look forward to working with John again as my next middle schooler looking towards high school.

Jim A
1/19/2019

John is an excellent tutor who really motivates his students, and keeps them focused on their own personal goals. He’s an excellent teacher. I would highly recommend him.

Dororhy Bligh
4/02/2020
This is excellent HSPT tutoring well worth the investment. Starting in the summer, we worked with Julian Rhine on John's team a couple of times a week via FaceTime/Skype. Through that and diligence completing more than 10 full practice tests, my son did well enough to get a full scholarship to Regis High School, as well as a full scholarship offer to St. Peter's Prep in JC, and scholarships to Seton Hall Prep and Oratory Prep. A total of more than $250k in scholarship money. THANK YOU for teaching him the skills needed to ace the test and to walk in with confidence. Julian was tremendous and John was a great resource to us as well. You'll be our first call in a few short years when it's time to start thinking about the SAT....Couldn't recommend more enthusiastically!

Michele Baer
2/16/2018

Highly recommend, high quality knowledgeable tutor. Good communication and very responsive to any questions during the process. My tutor well exceeded my expectations and gave us constructive feedback on his progress. My son got into the 2 schools he applied to.

Betty D
2/28/2023
My son worked with John last year for the 2018, HSPT, Tach, and scholarship exams. He was a semi finalist for Regis, and was offered scholarships to both Xavier and xaverian. John is an amazing tutor and prepares the kids for everything!! Thank you!!

Tara Muir
3/07/2019

John offers exceptional preparation for the TACHS exam. My son was in a small group with similar ability students. He felt well prepared and confident on the day of the exam. John explained the results of every practice exam at length to me when I asked. My son did an exceptional job on the TACHs exam. He even received scholarships to two of his three choices, thanks to John’s tutoring service.

Mrs. Cohen
2/26/2021
John was very thorough in breaking down each topic area and giving specific test taking tips. He was flexible in meeting times and group sizes. John offered many opportunities to take full practice exams and gave feedback and stats for each.

Kristin McMorrow
1/22/2020

I was looking for a tutor specifically for the HSPT and came across John's website. It was the best decision I made. Not only did my son get into Regis High School, but he got other scholarships as well. He worked with the kids, kept us updated and answered any questions we had. My son gained confidence in his ability to tackle these tests and for that I am grateful. Looking forward to working with John again for my other children. Thank you so much!- Marie - Jan 2017

Marie Allen
2/02/2017
John was my tutor for both the TACHs Test and the SATs. I received half-to-full scholarships to every high school I applied to. After a successful highs school career I reunited with John to prepare for the SATs. The results were outstanding! I received the presidential scholarship to every private school I applied to ranging from $80-$100,000. I was accepted into, and chose to attend, the Macaulay Honors Program at College of Staten Island, CUNY on a full academic scholarship. I was tutored in group settings and can attest that John has a way with connecting to each student individually to ensure that everyone reaches their potential. For my family and I John was worth every penny as he’s saved us tens of thousands of dollars over the years. John Z tutoring is the real deal.

John Hoey
4/28/2020

John is excellent and his hard work guiding my daughter thru TACHs and HSPT earned her several scholarships and high scores. John and his team are easy to work with and what he gives to his students will show in their scores. He prepares them and gives them confidence and gives detailed reports on his testing. He is excellent and worth it!

Nicole Digerolamo
1/22/2020
John and his team were very helpful and professional and offered wonderful tutoring services to my son for his Tachs, HSPT and SHSAT exams. My son did very well on his exams and received a partial scholarship due to his high scores on the Tachs exam and I am grateful! I am very happy that I used Master of Chemistry's tutoring services and I would highly recommend.

Daniela Amato
2/03/2022

Excellent tutor. Both John and Elina did a fantastic job providing lot of practice questions in math, English, analytical ability. There were times when we requested new questions to be integrated for the practice exams, and both the tutors happily did that. The tutors were extremely knowledgeable and informative. Kate was so nice and wonderful, talked with us many times, helped us in placing my daughter in the group classes with similar students. My daughter got high percentile scores in HSPT, TACHS, as well as BUTLER Scholar Exam. She was accepted in all the schools and also all honors program. She is very happy that she got in to one of her favorite schools with scholarship. Definitely recommend them for test prep for high school.

Ronita Ghatak
2/09/2022

John is an excellent tutor! He has thoroughly prepared my son for his high school entrance exams. John is an extremely intelligent individual but more importantly he is an effective teacher! I highly recommend John Z.!If my son needs a tutor in high school I will be calling on John and he will definitely be the one I have tutor my son for PSAT/SAT. – Liz , Breezy Point, NY on 10/15/14

John walks in the door and starts talking Chemistry. His teaching is dynamic and interactive. After struggling through an honors chem class for half of the year, I engaged John to tutor my son. The class was geared towards taking the SAT 2 Chem exam and my son had been scoring well below class average on many of the exams. Long story short, with John’s help he ended up scoring 770/800 on the Chem SAT 2. John was pleasant, optimistic, upbeat, and a pleasure to deal with and the proof is in the results. –Michael in TriBeCa, NY on 7/15/14

My son had some challenges with his Physics. John has been a tremendous help in tutoring my son with his Physics class. He scored very well in his final exam. With John’s help, Physics became one of my son’s favorite classes. Thank you very much, John!!
– Caroline in Brooklyn for her son at Stuyvesant High School in Spring 2013

Every problem that we do, he helps me figure out the solution on my own so I can do other problems and succeed on tests.
-Dmitry in Brooklyn at Hunter College for Biophysical Chemistry in Spring 2013

After my son started with John his grades went up and with grades confidence level went up. Additionally, after retaking the SAT after working with John on the Math section, my son went up 80 points. Great tutor. Thanks John!– Gary in Brooklyn 2013 for his son in Physics, AlgebraII/Trig, and Sat Math

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About me

Tutoring Math, Chemistry, or Physics, I instill a deep level of understanding that will not only prepare the student for tests, but also be able to apply these concepts to real world problems and build upon this knowledge in future classes. I was a chemistry teacher at Xaverian High School. I earned my Masters in Chemical Engineering from Cooper Union and am a graduate of Regis High School. I have received such a great education, I feel that tutoring is one of the best ways to give back and propagate a strong foundation in math and science. I enjoy showing students how easy, fun, and useful understanding the phenomena of the universe can be from a math/science perspective. I familiarize the student with common problems and break them down into simpler ideas that walk the student to the correct solution at their own pace and without judgment. I customize lessons for the student and try to make them as fun as possible. Students who I have consistently tutored for the eighth grade high school entrance exams have earned over $17 Million in Scholarships since 2015 and $4 Million in 2023 alone.

More About Me

SAT and AP Chemistry Blog

Diagram of Most Important Ideas for Chemistry AP, SAT, Regents, and Finals

Map of important ideas in Chemistry for the SAT, AP, and Regents Exams I've sketched some of the most important ideas for the SAT II Subject Test in Chemistry, AP Chemistry Exam, and New York Regents Chemistry Exam in the above concept map. This is by no means an exhaustive concept map. It...

How to Optimize True False questions on SAT II Chemistry Subject Test

In order to get a perfect 800 score on the SAT II Subject Test in Chemistry, the True-False section is the most unique and the most difficult for many students. In addition to the standard way to handle True-False questions, you must also bubble CE afterward if both statements are true and the...

Difference between AP Chemistry Exam and SAT Subject Test in Chemistry

The Chemistry Advanced Placement Exam and SAT Subject Test in Chemistry require similar skill sets but slightly different preparation. For both, a tutor can give your high school student the edge on a competitive field. SAT Chemistry is a great exam to have on your college application as most...

SAT and AP Chemistry Blog

List of Scholarships Earned Through Tutoring

Results of High School Admissions Prep 2023

Below is a summary of the results of 86 students who John Zaborskis and associated tutors consistently helped prepare for the TACHS, HSPT, and/or similar high school admissions exam in individual and group lessons online. Elina, Jordan, Liam, Cassidy, Jasky, Adham, Jeffrey, Julian, Jon, Nicholas, Maream, and others helped students entering high school in September 2023 earn over $4,215,610 in...

Tutoring HSPT and TACHS Scholarship Results 2022

For our most recent results, see Results of High School Admissions Prep 2023 = $4 million in scholarships. 17 interviews to Regis High School. Our students have had over 59 interviews to Regis and $17 million in scholarships since 2015. Below is a summary of the results of 98 students who John Zaborskis and associated tutors consistently helped prepare for the TACHS, HSPT, and/or similar high...

Tutoring HSPT and TACHS Scholarship Results 2021

Below is a summary of the results of 80 students who John Zaborskis consistently tutored for the TACHS and/or HSPT in individual and group lessons online. Entering high school in September 2021, they earned over $2,507,000 in academic scholarships to high schools in Manhattan, Staten Island, Brooklyn, Queens, the Bronx, and Long Island. This is over $9 million in scholarships for 8th grade...

HSPT and TACHS Scholarship Results 2020

Below is a summary of the results of 52 students who John Zaborskis consistently tutored for the TACHS and/or HSPT in individual and group lessons. Entering high school in September 2020, they earned over $1,733,000 in academic scholarships to high schools in Manhattan, Staten Island, Brooklyn, and Queens. This is over $6 million in scholarships for eighth grade students from 2016-2020. Regis...

HSPT and TACHS Scholarship Results 2019

Below is a summary of the results of 35 students who John Zaborskis consistently tutored and who took the TACHS and/or HSPT. They will enter high school in September 2019. Most prep was in group lessons but some was individual. They earned over $1,318,594 in academic scholarships to high schools in Manhattan, Staten Island, Brooklyn, and New Jersey. Regis High School, Manhattan - Regis High...

Tutoring Scholarships Earned

High School Admissions Blog

Results of High School Admissions Prep 2023

High School Admissions Blog, HSPT, ISEE, Regis, Results, Scholarships, SHSAT, SSAT, TACHS

Below is a summary of the results of 86 students who John Zaborskis and associated tutors consistently helped prepare for the TACHS, HSPT, and/or similar high school admissions exam in individual and group lessons online. Elina, Jordan, Liam, Cassidy, Jasky, Adham, Jeffrey, Julian, Jon, Nicholas,...

Sample Lesson for 7th Grade TACHS, HSPT, SHSAT, ISEE, or SSAT Prep

High School Admissions Blog, HSPT, ISEE, Regis, SHSAT, SSAT, TACHS

Read Transcript Signup and More Info on Our TACHS, HSPT, SHSAT, ISEE, SSAT High School Admissions Prep Program Important Ideas in Tutoring Sample Lesson In the first group lesson, we cover foundational ideas we will continually reinforce throughout our High School Admissions program in weekly...

Fordham Prep: Should My Son Attend?

All-Boys, High School Admissions Blog, HS Admissions Profiles, HSPT, SSAT, TACHS

Fordham Preparatory School Admissions Profile for Parents Situated on Fordham University’s Rose Hill campus in the Bronx, Fordham Preparatory School is one of NYC’s most prestigious college-preparatory schools for boys. Fordham Prep is a private institution, with a Roman Catholic religious...

High School Admissions Blog

Tutoring Home of John Zaborskis

Tutoring Subjects:

Chemistry

Physics

Calculus

SAT Individual Lessons and Group Classes

Regents Prep Classes – Chemistry

Regents Prep Classes – Physics

TACHS and SHSAT Prep Classes

Comprehensive 3 year+ Math/Science High School plan

Contact Me for more information or Schedule a Lesson in any subject, especially math + science

Anywhere in the NYC area or online

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Manhattan, Staten Island, Brooklyn, Queens, Bronx, Long Island, New Jersey,

Bay Ridge, Park Slope, Downtown Brooklyn, Dyker Heights, Bensonhurt

Tutor@MasterofChemistry.com

Reviews + Testimonials

Most Popular Courses, Lessons, and Classes

About me

SAT and AP Chemistry Blog

Diagram of Most Important Ideas for Chemistry AP, SAT, Regents, and Finals

How to Optimize True False questions on SAT II Chemistry Subject Test

Difference between AP Chemistry Exam and SAT Subject Test in Chemistry

List of Scholarships Earned Through Tutoring

Results of High School Admissions Prep 2023

Tutoring HSPT and TACHS Scholarship Results 2022

Tutoring HSPT and TACHS Scholarship Results 2021

HSPT and TACHS Scholarship Results 2020

HSPT and TACHS Scholarship Results 2019

High School Admissions Blog

Results of High School Admissions Prep 2023

Sample Lesson for 7th Grade TACHS, HSPT, SHSAT, ISEE, or SSAT Prep

Fordham Prep: Should My Son Attend?