Tutoring Testimonials
math, chemistry and physics tutoring
Marin Co. (415) 328-4925
David has filled my kids with math and science confidence. When my oldest son started high school math, he struggled. But, with David's help, he finished strong; his grades and math SAT score reflected the shift. We are very grateful for David. Marin parent of three students in Novato, CA.
~ David Porter gives students the leverage they need to succeed ~
What Parents and Students Say about David Porter's Leverage Tutoring
WHAT PARENTS SAY
CHEMISTRY TUTORING
“David tutored my daughter in chemistry in 2001. Her chemistry teacher didn’t teach in a way that worked for her so I hired David to get her through the first semester. David acted as her only real chemistry instructor. When I was able to transfer my daughter to another class for the second semester she ended up doing great by the end of the year. She will be graduating this June from U.C. Davis with a degree in chemistry. She has received a Rackham Merit Fellowship to pursue graduate studies in inorganic chemistry at University of Michigan. We will remember David for getting our daughter through that rough time. She could have come away from her high school chemistry experience with no intention of ever cracking a chemistry book again, but now it’s her passion. David made a real difference in a short time. Thank you, David!”
“It’s been many years since Mr. Porter worked with our son on Chemistry and Algebra II. He is doing so well, thanks in large part to Mr. Porter. Without his help, our son could not have done nearly as well as he did in chemistry. Mr. Porter’s command of the subject, together with his patient and steady style made all the difference for him. Our son went on to earn a degree in Biochemistry from U.C. Davis. While he was there, he received the Chancellor’s Award for his research in biochemistry. Following graduation from college, our son landed a good job at Bio Marin, the pharmaceutical company. He is now attending graduate school at San Francisco State University in order to get a Masters in Biochemistry. Thank you David, and all the best.”
PHYSICS TUTORING
“Your physics tutoring really made a difference for our son, and he enjoyed working with you. You have the ability to explain the material in an interesting and understandable manner.”
“Learning AP Physics online over the pandemic as a High School Junior was challenging. However, with Mr. Porter’s clear explanations, useful examples, and guidance, I Marin AP Physics studentwas able to gain a complete and comprehensive understanding of the subject. I really appreciated Mr. Porter’s experience as a teacher, as it contributed to my successful preparation for the AP Exam.”
MATH TUTORING
“Our son’s confidence increased due to David’s support and clear instruction”
“I was more proud of our son for passing Algebra II with a solid C than I was for the A’s he got in other courses because I know how hard he had to work to make that grade. Mr. Porter’s work with him made a critical difference.”
“Our family is very pleased with the quality of instruction David provided for our daughter. He explained very complex concepts in a manner that helped her understand. Also, she learned the value of proper study skills in math through David’s work with her. Our daughter found her confidence again in math and now again enjoys it.”
“David is a gifted teacher & tutor. My 17 year old son has become a much stronger student with David’s help. They work on Algebra II & Chemistry. My son’s grades have improved, and he feels more confidant in class, and that makes him feel great! Wish we had found David sooner!”
“Not only did our son’s grade increase, but as important, you showed him his strengths and intelligence in math. David was always available, returning calls promptly. If I needed details he was available to explain.”
“I hired David to tutor both of my children in geometry and precalculus. David has been very professional and in-tune with what my teens needed in order to improve their grades and study habits.”
“Our son says he really likes David’s teaching style & felt so much more confident about geometry after just one session.”
WHAT STUDENTS SAY
PHYSICS TUTORING
“Learning AP Physics online over the pandemic as a High School Junior was challenging. However, with Mr. Porter’s clear explanations, useful examples, and guidance, I was able to gain a complete and comprehensive understanding of the subject. I really appreciated Mr. Porter’s experience as a teacher, as it contributed to my successful preparation for the AP Exam. ”
MATH TUTORING
“He knows his stuff! ”
“David explained concepts in a way I could understand. The tutoring sessions helped my self-confidence going into tests and quizzes.”
“Our tutoring sessions improved my understanding of both precalculus and calculus because you were able to explain lessons differently (or more in-depth) than my teachers. Having a lesson explained a second time greatly helped me.”
“David’s additional instruction outside of class gave me more confidence in precalculus.”
“With the precalculus concepts that were difficult for me David was very patient and explained them in multiple ways until I understood.”
“Through our tutoring sessions, I was able to enjoy precalculus and calculus because I understood what I was learning in class, and I was more confident about my knowledge”
“I’m an adult, returning to college to finish my degree. I have found David’s tutoring in Calculus invaluable. He is patient and is careful to tailor his instruction to meet my pace of learning. I couldn’t do as well without him. Thanks, David! ”
“Mr. Porter has helped me tremendously with my AP Calculus. He is very patient, and explains things clearly, going step by step with anything that I have trouble with. It is always easy to reschedule sessions. Especially, when I have a test or quiz. I can reschedule a session so that it is before the test. ”
“David gave me more confidence with calculus.”
“Thank you for being such a great tutor during that first semester. I will continue to use the lessons you taught me through my last semester of calculus.”
“Thank you for being such a loyal and amazing calculus tutor this year. You have really gone above and beyond in helping me, and I really appreciate that. I feel very proud of my performance this year in calculus and I would just like to thank you for that. ”
“You are such a great tutor. My family and I really appreciate how much you have helped me.”
“David Porter not only helped pass my AP Calculus AB/BC class, but helped me get a 5, the highest score on the AP Exam as well! I couldn’t have achieved this without his help and support. ”