Experienced tutor in Mathematics. Oxford University PhD. Retired Aerospace industry Engineering Vice President. Private online lessons worldwide. USA based.

Peter has all of the qualities of a great tutor: patient, kind, extremely knowledgeable, easy to understand and flexible. My 8th-grade daughter was comfortable from the start working with Peter and actually looked forward to working with him. His ability to explain the 'whys' of math/algebra made all the difference and directly impacted her final grade (A). Bottom line...I highly recommend Peter.

Dr. Peter was always so kind and easy to work with. He is so intelligent and patient and genuinely loves what he does and cares about his students and their success. He would work through problems step by step and ensured I had a thorough understanding of the material before moving on. Dr. Peter tutored me throughout high school and I received As in many AP math courses with his help!

Dr. Kirby was an excellent tutor who helped me get ahead in my calculus course! I would definitely recommend him to anyone who needs help in math. I will be using Dr. Kirby’s services in the future!

Dr Kirby is very knowledgeable and follows up with the student in cases where they are having difficulties. He is flexible with his time and available for questions via e mail or text. He is very personable and will go to many lengths to help the student understand any type of math question from easy to the most complex

My son’s Math SAT score increased more than 100 points after working with Peter. He scored in the 96th percentile for Math.

Dr. Kirby was thorough with very specific goals. He kept me informed about my daughters progress all through the process. He is professional with a friendly demeanor. I would not hesitate to recommend him as a tutor

Peter was really patient when tutoring me. Whenever we’d start learning something new, for example parabolas, we’d start by learning where it came from and it’s simpliest forms then work our way up. Also he helped me a lot with the SAT’s! Really helpful, I’m thankful!

Peter is welcoming, kind, encouraging and witty!! He made me feel like I can accomplish anything I put my mind to! Peter has been a mentor I continue to remin in touch with over the years :-) I recommend him to anyone willing to learn and better themselves for a brighter future!

Dr. Peter Kirby was really helpful in explaining class material and emphasizing important aspects of my course. He definitely benefited my understanding of the lessons in lecture.

He was so brilliant and able to answer my daughters questions for both pre-calc and calculus. He was never condescending and she always felt comfortable to asking questions.

Dr. Kirby is honestly AMAZING. I would give him a million stars if the website allowed it. Not only is he very knowledgeable in calculus (and essentially all math subcategories) he is a great man. Having him as your tutor is the RIGHT choice. Whenever any of my friends had any problems with Calc, I sent them his way. He is so nice and supportive, and always remembers to ask how you are. He asked how my job interviews went, and was so happy for me when I would Ace my Calc tests. I think the saddest part of finishing up my AP Calc class was saying goodbye to Dr. Kirby. If you are looking for any help AT ALL, stop looking. Dr Kirby is your man. Miss you!! :)

Peter is great at noticing what the child needs helps on wong with being able to help the child in a helpful way. Peter is very observing and understanding of student’s schedule.