Andrew DuFresne



  • Academic Support
  • Biology
  • Chemistry
  • Environmental Science
  • Math
  • Physics


  • ACT
  • AP Exams
  • PSAT
  • SAT
  • Subject Tests


  • Remote (Skype, Google Hangout, FaceTime, etc.)
  • Tenleytown, DC


Andrew is a scientist with a passion for teaching. His driving force is the ever-present need for the technical and abstract to be better communicated to students. He helps students break down, analyze, and conquer standardized tests and feel confident and knowledgeable in science and math. His goal is not to convince every student he or she should or will love science and math; rather, his goal is to demonstrate that whatever a student does love and enjoy can be connected to science and math in one way or another. He works to improve the clarity of material a student needs to know, communicate with the student in order to treat learning like the dialogue that it should be, and provide context for information and illustrate its relevance to the student.

Andrew earned his Bachelor of Science degree in Biochemistry from Worcester Polytechnic Institute. While at WPI, he was a Genetics teaching assistant for two years. His desire to make his mark on the scientific world led him to complete his Ph.D. in Biochemistry, Cellular, and Molecular Biology at The Johns Hopkins University School of Medicine. Over the course of his educational and professional experience, he has completed projects and written reports on the intersection of science and society for NASA, optimized equipment and trained scientists for Johnson & Johnson, and taught seminars on science communication at George Washington University. Apart from discussing science and current events with anyone with something to share or willing to listen, Andrew loves to travel, eat amazing food, and play and hear live music. He also really hopes he gets around to picking up fencing again.


There are several different ways in which we all learn and absorb information. It is virtually impossible for a teacher of an entire classroom to relate to every student and target each and every learning style. One-on-one tutoring allows me to focus entirely on an individual student, determine his or her learning style, and cover the material in a way that comes naturally to the student. Performing well requires effort, patience, and a positive outlook from both teacher and student. Once we figure out as a team how to make something difficult and complex become easier and understood, nothing will stand in your way.


Andrew is one of the best tutors my daughter has ever had. Andrew has gone above and beyond helping her with college chemistry. She says he explains the concepts so well to her. Andrew is an amazing teacher and he has helped build my daughter’s confidence in the sciences. He is always willing to find time to Skype with her and we really appreciate all of his help. As an tutor and a person- Andrew is priceless.

- Washington University parent

“We love Andrew!!!  A series of sessions helped raise some of my daughter’s ACT scores by 10 points from her original practice test. He’s amazing!!!”

- Walt Whitman High School parent

“Andrew provided our son with the support and tools he needed to be a successful ACT test taker. We appreciate Andrew’s immediate understanding of our son’s strengths and “weaknesses” and his ability to offer guidance and confidence-building strategies that were essential to our son’s progress.”

- Potomac School parent

“Andrew provided tremendous support to our son as he prepared for the ACT. It is challenging for students to complete their course prep work while still studying for school. Andrew was able to inspire our son to complete his prep work and take multiple practice tests. My son benefited tremendously from Andrew’s patient instruction and guidance. We look forward to working with Andrew again with our younger son.”

- Sidwell Friends School parent

“We have been very happy with Andrew. He is not only smart and quite knowledgeable, but has a good sense of humor and is thoughtful and empathetic with the students during a time that can be quite stressful for them. The whole team has been quick  and responsive.”

- Walt Whitman High School parent

The service we have been getting from Mr. Andrew DuFresne has been most wonderful.  We sincerely appreciate his assistance with my son.  I will definitely recommend Mr. DuFresne to my friend and others.