Petra Corretjer De O'neill
Grade 9Pre-Calculus

Petra Corretjer De O'neill – Pre-Calculus

Apr 2026 · 2nd Semester

Pre-Calculus · Petra Corretjer De O'neill
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Limits & Introduction to Calculus

Understand the concept of limits, continuity, and rates of change as preparation for calculus.

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Kevin's profile
Kevin
University of Pennsylvania
I am a graduate from the University of Pennsylvania where I received a Bachelor of Arts in Chemistry. I started peer tutoring in high school, staying after school to help fellow students with AP Chemistry content before major exams and quizzes. I currently tutor in math (up to AP Calculus BC/Calculus II), chemistry, physics, biology and offer test prep for the SAT and several SAT Subject tests. However my favorite subjects to tutor involve chemistry, due to the various real world examples that make the subject more comprehensive and ultimately enjoyable for students. My hobbies and interests include dancing, solving crossword puzzles, binging Netflix TV shows and hiking.
Pre-Calculus
AP Calculus AB
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William's profile
William
MIT
From my experience teaching math to a range of students, from middle school through college, I know that it does not come easily to everyone. However, I firmly believe that everyone has the capability for mathematical reasoning. Everyone has their own strengths and challenges, and my job as a tutor begins with identifying these. I like to have students work through problems while I guide them and make suggestions, so that I can get a sense of what they understand and what they don't. Then we can build on their knowledge and break down the challenging parts of the problem into smaller, more manageable chunks. I hold a bachelor's degree from UChicago and a doctorate from MIT, both in mathematics. I am available to tutor Latin, physics, and all levels of math. Outside of academics, I am an avid tournament chess player, and I enjoy running and cycling.
AP Statistics
AP Calculus BC
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Carina's profile
Carina
University of Pennsylvania
I have a bachelor's degree in Business Economics from the Wharton School at the University of Pennsylvania (GPA 4.0) and previously graduated from The Lawrenceville School cum laude. I am currently pursuing a Master's Degree at the London School of Economics. I began tutoring in 2019 and have worked with students of all ages and backgrounds. I'm open to tutoring a very broad range of subjects, with the most experience in math, econ, and test prep. Please reach out if you're interested in working with me or if you have any questions!
Pre-Calculus
AP Calculus AB
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Sanjiv's profile
Sanjiv
Princeton University
Math has been my passion ever since high school - from earning 1st place nationally in Calculus and Linear Algebra, to competing on the AMC 10, AMC 12, and AIME exams. At Princeton, I tutored peers in Multivariable Calculus, and since then I've worked with middle school through college students in Geometry, Precalculus, Trigonometry, Calculus, and SAT/GRE quantitative prep. I'm dedicated to simplifying complex ideas and helping students build confidence in their own problem-solving skills! I also built my first artificial intelligence tool in 2018, and currently enjoy helping integrate LLMs and Agents for companies!
Pre-Calculus
AP Calculus AB
4+ more

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