Our Rocket Stars

Meet Jonathan. Physics & math tutor

A physicist who did undergraduate research in molecular simulations, and who once took on a seven-year-old’s questions about quantum physics.

Teaches
Physics, math, chemistry
Known for
AP & college physics
Background
B.S. Physics, Stony Brook
★★★★★16 families mention Jonathan by name

In his own words

Meet Jonathan before your first lesson.

Hear how he teaches, straight from Jonathan.

He is the key that has helped my son move from surviving to thriving!
Nicola M., parent · review

About Jonathan

From quantum questions to college physics.

Jonathan grew up on the East End of Long Island and earned his B.S. in Physics at Stony Brook University, with a minor in mathematics. His love of physics started in high school and carried into college, where he did undergraduate research in molecular simulations.

He has tutored everyone from middle schoolers filling gaps in Algebra to college students in Physics 3. Parents keep describing the same things: patience, a calm approach, and the “hows and whys” explained until they click.

Credentials

  • B.S. Physics, minor in MathematicsStony Brook University
  • Undergraduate research in molecular simulations
  • Teaches physics, math & chemistryAP and college Physics, Algebra through Calculus, Chemistry

In their words

What families say about Jonathan.

16 five-star reviews that mention him by name, from Google and Yelp.

EK
Emily K.
Jul 4, 2026
Google ↗
★★★★★

When my daughter was looking to go beyond her middle school math class, we were fortunate to find Alexander Tutoring. My daughter worked weekly with her fantastic tutor, Jonathan, throughout 7th & 8th grade. He not only helped her fill in the gaps in Algebra I so that she was able to successfully place into Honors Algebra II for high school (her goal!), but was also super flexible and engaged with her in exploring advanced conceptual math (for example, venturing into trigonometry and calculus, and particularly quantum physics) The online platform, which she was apprehensive about at first, worked really well, and she always looked forward to going online for her tutoring sessions. We would absolutely continue with Jonathan in high school, and I wouldn’t hesitate to work with Alexander Tutoring again to provide support for my younger daughter, who struggles with math, as she heads into middle school.

DG
Diana G.
Nov 2, 2025
Google ↗
★★★★★

Jonathan has been a fantastic math tutor for my daughter during her sophomore year. His calm approach has helped her build confidence in the subject that she once found intimidating. She started the math class without any tutoring, however, she quickly realized that she needed more help and a tutor who could bring her grades up. Being a straight A student, it was difficult to accept her lower grades and it affected her confidence. We heard about Alexander tutoring and thought to give it a try. It was easy to connect with the staff at Alexander tutoring, they were able to match the perfect tutor for my daughter and within two sessions, my daughter felt more confident in Algebra, her test scores improved and she was looking forward to the one hour tutoring sessions with Jonathan. He understands his students and explains concepts in a manner tailored to each student. He is incredibly patient and provided tips on understanding some of the difficult concepts. My daughter had not only improved her grades but also developed a genuine interest in math thanks to Jonathan’s support. We are so grateful to Alexander tutoring team for helping my daughter gain her confidence and helping her score higher grades(D to B+). I highly recommend Jonathan to any family looking for a thoughtful and a very effective tutor.

DG
Desiree G.
Jun 27, 2025
Google ↗
★★★★★

Jonathan has been tutoring my kids for 3 years now getting both of them through very tough college math and science curriculum. They always feel well prepared to tackle exams leading to solid A’s in class.

CF
Cecile F.
May 12, 2024
Google ↗
★★★★★

Chloe is loving her sessions with Jonathan and has greatly grown in confidence in maths and sciences.

KL
Kevin L.
May 10, 2024
Google ↗
★★★★★

Jonathan - I want you to know how greatly appreciated you are in this household. Your kind, approachable and empathetic manner along with your effective teaching skills truly make you a rock star. Thank you for turning the year around!

DE
Dean E.
May 10, 2024
Google ↗
★★★★★

Jonathan is awesome. Helped two of our kids to master tough Calc concepts. Head and shoulders above one of their teachers, I was told by our kid. Can’t recommend him enough!

DE
Dean E.
May 9, 2023
Yelp ↗
★★★★★

My daughters had Jonathan for Chem, Pre-Calc and Calc. He’s fantastic! Can’t recommend him enough. If your kids’ teachers aren’t as clear as you’d like them to be, ask Jonathan’s help to steer your kids to a clearer understanding. You won’t regret it.

PC
Paul C.
Feb 6, 2023
Google ↗
★★★★★

I highly reccommend Alexander Tutoring and Instructor Johnathan! My high school senior started work on the CA State Water Treatment licenses that require high school and college level math and physics. Instructor Johnathan has been professional, amiable, knowledgeable, patient, and able to explain the complex problems in terms she could understand. Hats off to Alexander Tutoring and Johnathan 😊

OA
Olufemi A.
Sep 22, 2020
Google ↗
★★★★★

We discovered Alexander Tutoring via a web search and decided to give it a try because of the rave reviews. We were not disappointed! Jonathan has been teaching our 2 kids Math and Physics and his teaching approach, patience and attentiveness has greatly improved their interest in and aptitude for the courses! Jonathan is always punctual. His patience with the children encourages them to ask questions and he diligently takes the time to explain. My wife and I were a bit concerned about the schedule of the classes, because of the time difference between Africa and the West Coast. However, Sean was flexible and committed to finding a time that worked for both parties. We are really delighted to have found Sean and his team!

AL
Astor L.
Aug 5, 2020
Yelp ↗
★★★★★

I actually had a few conversation with Sean before I enrolled my son into their programs. Sean was very patient and understood my concern. He assigned my son with Jonathan to do a one on one Geometry session in summer. My son usually gets bored easily and it’s hard to capture his full attention. Jonathan did a fantastic job to attract his attention and able to challenge him plus boosting his confidence. My son was very happy with Jonathan. Our goal is to help him to get a solid foundation in summer so that he can master his honor class in fall plus the upcoming pre-cal class. The amount of homework was just right so that he spends reasonable amount of time in playing and working in summer. I strongly recommend Sean and Jonathan for Maths advancement.

MD
Malika D.
Jul 8, 2020
Google ↗
★★★★★

Jonathan is currently tutoring my son in eleventh-grade physics. Josiah has an A in Physics and more importantly, he feels he has a good grasp and confidence in the subject. Jonathan is patient and has a strong comprehension of physics. He’s very adaptable and helpful when Josiah has a structured assignment or when they are practicing concepts. He is punctual for all their appointments and communicates before each meeting to make sure both parties are on the same page. Lastly, Jonathan is very respectful and always has a positive attitude.

NM
Nicola M.
Jul 1, 2020
Google ↗
★★★★★

My son, a chemistry major at Northeastern, has been tutored by Jonathan for about a year. When he met Jonathan, mid-semester, he was close to failing physics 2. He ended the semester with a B+! Now he is working with Jonathan on mastering physics 3. Jonathan helps him work through problems and provides a deep conceptual understanding. He is the key that has helped my son move from surviving to thriving!

CC
Cat C.
Jul 1, 2020
Google ↗
★★★★★

Sean and his star teacher Jonathan are amazing. I was stuck in finding the right teacher to support my 7 years old son’s learning needs, who has unusual passion to quantum physics but only have poor primary school math knowledge. It’s almost mission impossible! But Jonathan did it! Can’t be happy more!

EC
Erica C.
Jun 3, 2020
Google ↗
★★★★★

My daughter has been working with Jonathan from Alexander tutor. She’s being tutored with AP Physics, and Jonathan has been such a great instructor. He has the best way in helping my daughters. He’s very patient, very kind, very encouraging and always goes the extra mile to help my daughter. I have seen how she looks forward to tutoring with Jonathan and how her stress level has gone down towards the end of her 1st Junior semester! We are so appreciative for Alexander tutoring services. And so excited that my daughter was paired with such beautiful, compassionate and understanding human being, Mr. Jonathan! Thank you, Alexander Tutoring! Erica (0/21/2020)

JM
Jill M.
Feb 6, 2020
Google ↗
★★★★★

Can’t say enough about them! Jonathan has been tutoring my daughter in 7th grade math and she’s not only doing so much better in her work-finding that it makes sense in a way she struggled with before-but her confidence level in class has jumped leaps and bounds. She’s actually enjoying math! He’s very patient and has a way of explaining the "hows and whys" of the problems she’s working on in a way that makes sense to her. I really like the fact, as well, that I can contact him any time to suggest material he can cover, or ask questions. Scheduling is accommodating and a breeze and communications-both with office staff and Jonathan are easy and effective. Thank you!!

JH
Justine H.
Feb 3, 2020
Google ↗
★★★★★

I have had a great experience with them and would highly recommend them. My physics tutor, Johnathan Lupercio, was very attentive and helpful. He also had carefully thought-out lesson plans for me and was very patient with any sort of questions I had. Everyone who works here is also very friendly.

How matching works

We predict success. Then we match passions.

The Rocket Star Rank shows us which tutors families keep coming back to. Then we pair your student with one who shares their interests, so math connects to what they already love. 80% of students click with their first match. If yours doesn’t, try another tutor. Every trial lesson is risk-free.

Ready when you are

Start with a risk-free lesson with Jonathan.

A 50-minute one-on-one lesson plus a skills assessment. No credit card required.

Book a risk-free lesson with Jonathan →

If it doesn’t work, you don’t pay. Period.

We’re so confident in our method that we guarantee your results for the entire semester. If you’re not satisfied at the end of the term, we’ll refund every penny. No fine print. No partial credits. A full refund.

No other tutoring company in the country offers this — because no other tutoring company gets results like ours.