ACT Test Prep

In addition to her role as an Elite Tutor, Zdenka serves as Summit’s Assistant Director of Curriculum, Instruction, and Training. She joined Summit in 2007 and has contributed in multiple roles, including Adjunct Instructor in Biology at Cambridge College. She holds a BA in Anthropology from Harvard, where she received the Detur Prize and a Center for European Studies grant. In her spare time, she enjoys exploring abstract algebra and number theory.

Originally from Scotland, Tessa moved to the U.S. in 2001 after earning a PhD in Molecular Biology from the University of Aberdeen. She completed postdoctoral research at Boston University and worked as a research scientist at Tufts Medical Center. Tessa spent ten years as an educator at the Museum of Science, where she honed a knack for breaking complex topics into simple, engaging pieces. She joined Summit as a tutor in 2015 and makes sessions productive and enjoyable, using a touch of humor to ease test prep. Outside of work, she enjoys hiking, biking, camping, skiing, and traveling.

A Summit tutor since 2020, Aubrey turns test anxiety into structure and confidence with step-by-step planning, pacing, and problem-solving while building executive-function habits that last beyond test day. An adjunct professor at Dean College and Stonehill College, she brings college-level expectations and actionable feedback to her tutoring sessions. She holds an MFA from Florida Atlantic University and a BA from USC. A professional actor, her restorative-yoga training informs the calm, focused test-day routines she coaches.

A strengths-based, methodical tutor, Megan joined Summit in 2013 and builds a close rapport with families while keeping sessions engaging and results-focused. She earned a BS in Psychology/Biological Bases of Behavior from Duke, then spent five years in clinical research at Tufts while completing post-baccalaureate pre-medical work at Harvard. Choosing education over patient care, she now tutors full time and loves helping students reach their goals. Outside of work, she follows sports and travels widely—22 countries and counting—with highlights like Denali base camp, Mt. Fuji, and the Great Barrier Reef.

Michael graduated Phi Beta Kappa with honors from Johns Hopkins University, earning a B.A. in sociocultural anthropology. He has been a tutor and teacher with the company since 2016. Known for his patient, supportive style, Michael helps students build metacognitive awareness and strong logical-reasoning skills. Before joining the company, he worked in community organizing and researched community-based public health programs. Outside of tutoring, he’s an avid reader and crossword puzzler, a language and math enthusiast, and he enjoys biking and hiking.

Marvin has been a Summit tutor since 2004 and spent 12 years as a Senior Program Director, guiding families through the standardized-testing landscape. A former attorney focused on estate and business planning, he graduated magna cum laude from Boston University with a degree in English Literature and holds a JD from Suffolk University Law School and an LLM in Taxation from Boston University. Outside tutoring, Marvin values time with his family—including four grandchildren—has completed 25 marathons, and is active in his synagogue’s adult education programs.

Jonathan is one of Summit’s most experienced tutors, working with students since 2008. He earned both his bachelor’s and master’s degrees at MIT in meteorology, hydrology, and earth science. Driven by a thirst for knowledge and a genuine passion for helping students succeed, he brings a broad, empathetic perspective shaped by years living overseas and traveling on foot, by bike, and by kayak. When he isn’t tutoring, Jonathan works as a cartographer.