Stone is a former software engineer with a degree in Chemical Engineering from Washington University in St. Louis. As a software engineer, he worked in the financial and cryptocurrency space at companies such as Vanguard and Morgan Stanley. He currently teaches Engineering and Robotics in high school.

Stone takes an individualized approach with every student he works with. He believe rapport and mutual respect are the foundations from which successful habits can be formed. Meta-skills in self-learning, problem solving, and critical thinking are extremely important to long term success and Stone works to develop these alongside any curriculum.



Kristen graduated from Pace University in 2014 with a bachelor’s degree in Mathematics. She has spent the last 8 years tutoring mathematics for middle and high school students, as well as all topics of the SAT and ACT. Her years of experience focus on teaching to the student, not the subject, and she believes that a one-size-fits-all approach does not work for every student. She likes to take a holistic and mindful approach when working with students. In her free time she enjoys reading, going to orange theory, and hanging out with her cat, Chewy.



Svetlana Vlahopoulos recently joined the Math Department of The Ursuline School. Svetlana earned a Master of Science in 5 years and began teaching at the age of 22. When she moved to the USA, she had an opportunity to further her education and entered a pre-med program at Hunter College. Although she did not attend medical school, the pre-med program deepened her knowledge of science and math and helped her realize that her true passion is teaching. Her mother always told her, “One who is a teacher is always a teacher,” Svetlana came back to teaching, but she believes that she is also learning from her students.

Svetlana knows that our DNA’s unique combinations make us all different and it is important to recognize that we not only look different but also learn differently. To make learning desirable, Svetlana always looks for exciting teaching methods, so she can provide her students with individualized learning experiences.