Online Tutoring

Real-time two-way: writing, document cameras, and other interactive technologies. Online tutoring done right. This is real teaching, not just tutoring.

Perdocere Online Tutoring - Math - Schoolwork Grades 7-12, SAT Tutoring, ACT Tutoring. Call 833-MATH-833.

For 30+ years, and a decade online, my students have earned the Highest Grades at School 7-12 and Top SAT & ACT Scores. Call 833-MATH-833 (833-628-4833) to speak with me directly or request a callback.

Dr. George – President & Founder, Perdocere, Inc.
Ph.D. Harvard
B.S. MIT


Perdocere Math Online Tutoring - Schoolwork Grades 7-12, SAT Prep, ACT Prep. Call 833-MATH-833.

Dr. George, many, many thanks for all your hard work with our son. You were the only tutor we used that truly put your heart and soul into his success.


An unparalleled online tutoring experience. Vastly superior teaching (forgive the immodesty, but what’s true is true) coupled with real-time two-way freestyle writing. The photographs below demonstrate Perdocere’s pen enabled online tutoring – whiteboard, voice, and other interactive technologies. Every lesson is one-on-one and customized to the needs of my students. We don’t fumble with a mouse to write equations, nor work at a reduced pace with generic tutoring software. Together, we write and share information effortlessly during lessons.

The most important validation is what parents and students have to say, so please see the growing list of hundreds of testimonials (prominent names may surprise you). Reading through these testimonials will be more informative than anything I could write on this web site. I have tutored students online for years and have fine-tuned the online educational experience. In addition, by tutoring online, my huge collection of books and resources is readily available. For example, when one of my students chose to spend a year abroad in Viterbo, Italy, the system worked seamlessly. In my own home, I send my children to their computers to receive my instruction, it works that well and is that engaging! No matter where you are, if you have a good internet connection and desire the best possible instruction, then I welcome your call.


Perdocere Math Tutoring - Schoolwork Grades 7-12, SAT Prep, SAT Tutoring, ACT Prep, ACT Tutoring. Call 833-MATH-833.

Hundreds of testimonials with prominent named verifications for my own work with students. Please take a moment to read them, as they are more insightful than anything I could possibly write. I prefer no hype, and what matters is a long term track record of student success.

Perdocere Math Tutoring - Schoolwork Grades 7-12, SAT Prep, SAT Tutoring, ACT Prep, ACT Tutoring. Call 833-MATH-833.

This is a simple but fun piece of math. Chose any integers p and q, where p > q, and the relationships below will generate Pythagorean triples.

\[\begin{array}{c} \color{blue} { \eqalign{ & {a^2} + {b^2} = {c^2} \cr & a = 2pq \cr & b = {p^2} – {q^2} \cr & c = {p^2} + {q^2} \cr} } \end{array}\]

Click here for worked out examples – Also, click through my website for more practice problems and to learn more about me.