ibidPREP tutors are a special bunch. They’re not teachers in the conventional sense. They are writers and actors and artists and lawyers and physicists and public health experts and journalists and chemists. They are warm-hearted individuals committed to imparting the material, methods and attitude necessary to make their students happy and successful in their studies and their tests.

Stuart Servetar

Stuart Servetar has been tutoring privately for more than two decades and founded ibidPREP in 2006. He received a B.A. from Wesleyan University in '83 and majored in English Literature and Philosophy. Over the years, Stuart has helped hundreds of students from the finest private and public schools in New York City gain entrance to the best middle schools and high schools in NYC and the best colleges and universities in the U.S. and abroad. In addition to his work as a private tutor, Stuart Servetar has worked as an arts and culture journalist (e.g. Art in America, Esquire, Time Out New York) and exhibited his paintings in galleries in New York City and throughout Europe. He lives with his wife and two sons in Manhattan.


Associate Tutors


Christopher Aebig

A native New Yorker, Christopher is a graduate of Regis High School and the Macaulay Honors College at the City College of New York. Christopher currently holds a Bachelor’s degree in Biomedical Engineering and has experience with medical device design as well as device verification and validation. If you are looking for help in advanced mathematics, physics, chemistry or biology, Christopher is your go-to guy. Also an aspiring polyglot, Christopher learned Spanish to fluency and can hold at least a basic conversation in 15+ different foreign languages. He is happy to practice them with anyone he meets!


Dante Belletti

Dante Belletti is a recent New York transplant from California. After growing up in Orange County, he moved to the Bay Area to attend Stanford University, where he received his BA in Political Science and Theater. After College, Dante taught test prep for two years in the Bay Area and grew to love helping students achieve their academic goals. An actor, Dante moved to New York to train with SITI Company and pursue a career in theater. When not acting or teaching, Dante enjoys playing the guitar and seeing as much live theater as possible.


Olivia Ciacci

Olivia Ciacci has taught at independent schools in Pennsylvania, where she grew up, and Connecticut, where she went to college. Before becoming a teacher, she worked as an improvisational comedian in Philadelphia and enjoys sharing laughs with her students. She earned her BA in English from Yale and her MA in English from Middlebury's Bread Loaf School. Olivia moved to New York to attend Columbia University's MFA program. In addition to her work with ibidPREP students, Olivia currently writes fiction and teaches Columbia undergraduates.

Ian Fiedorek

Ian is a native New Yorker who attended New York University and Stuyvesant High School. He has prepared students for the SAT, SHSAT, ACT, and Regents for the last seven years. An avid composer, Ian's first symphony, Fallout Symphony, was published in 2013. He entered the MFA program in Creative Writing at The City College of New York in the fall of 2014.


Grace Finkel

Grace was born and raised on the Upper West Side and attended the Trinity School. She graduated from Columbia University with a major in Neuroscience and Behavior and will be starting medical school at Columbia Physicians and Surgeons this fall. In her year before medical school, she is working with the Cardiothoracic Surgery Department at Columbia University on research projects and organ transplant procurements. She has taught health and sciences to high schoolers in both a classroom and one-on-one settings. 

Molly Rose Heller

Hailing from sunny Southern California, Molly made the trek out east for her undergraduate studies. She completed college with not one, but two degrees. Molly graduated Magna Cum Laude from Columbia University where she received Departmental Honors for her major in Drama and Theatre Arts. She additionally graduated Magna Cum Laude from The Jewish Theological Seminary of America (JTS) with a major in Modern Jewish Studies. In addition to tutoring, Molly is pursuing a career in theatre as a playwright, director, and actor.

Nicole Kaiser

Nicole grew up in New Jersey and attended high school at Horace Mann School, where she graduated with honors in Science and History and was awarded the Henry Geldzahler Prize in Art History. She discovered ibidPREP when she was tutored by Stuart for her ACTs. She has over three years' experience teaching science to elementary and middle school students at a local community center and has tutored high school students one-on-one for their Regents examinations through Columbia University's Double Discovery Center. She currently attends Columbia University and is continuing her studies in Art History. When Nicole is not tutoring, she is at the Frick or the MoMA, training for an upcoming cross country race, reading for her book club, or discussing the complexities of the Marvel Universe with her little brother!

Tori Keenan-Zelt

Originally from Pittsburgh, Tori has taught English, history, and theatre in independent schools in both the US and Singapore. Having studied American history and literature at Harvard (magna cum laude), she earned an MAT in secondary education from Simmons and an MFA in dramatic writing from NYU Tisch. By day, she makes plays and movies. By night, she grows brains. As an experienced tutor, she has helped hundreds of students reach their academic goals, prep for tests (SAT, Subject Tests, ACT, AP’s, ISEE, SSAT, etc.), and apply to programs that excite them. Her favorite superpower is helping students to read well and to find and flex their voices on the page.

Paul Ketchum

Paul grew up in Colorado and attended the University of Denver, where he graduated with a BA in English. He moved to New York City in 2010 to attend the MFA Playwriting program at Brooklyn College. His most recent production, the Harper's Play, which was based on the February 2014 issue of Harper's Magazine, enjoyed a sold out run at JACK in Brooklyn. He's been whipping students' test-taking and writing skills into shape for close to a decade.

Joseph Klebanoff


Joseph hails from fifty miles north of Manhattan, in that nebulous "Upstate." He has tutored for all sorts of tests in the Tri-State area, and he always gets a charge out of students' (and parents') shock when scores soar. He holds a Bachelor of Music from the Manhattan School of Music, where he majored in classical voice. When he isn't tutoring with ibid or singing at freelance gigs, he likes to listen to live jazz, attend poetry readings, and take long walks (for real!).

Leo Liebeskind

Since studying at Hunter High School and Oberlin College, Leo has worked as an assistant teacher at the Hunter Elementary School after school program and as a private tutor to children aged 5-17 in reading, writing, math, and standardized test preparation. A former chess champion, Leo also teaches chess. Lastly, Leo is also a serious musician and songwriter; he spends most of his free time gigging and recording with his band, and includes guitar and music theory lessons in his teaching arsenal. 

Audrey Moyce

Audrey grew up in Northern California and graduated from Sarah Lawrence College with a BA in Theater. After working as a theater tech, she left New York to earn her MA in Theater and Performance Studies from Stanford University. When she's not working for ibidPREP, Audrey writes theater criticism and other nonfiction, and will sometimes perform in a piece or even sing in a band.

Caroline Pang

Caroline grew up in Cherry Hill, New Jersey and graduated from Georgetown University with a Bachelor of Foreign Service in Science, Technology, and International Affairs. She also has a Master in Public Health. Caroline loves explaining complex concepts to students and helping them apply them to real life (or real tests). When not tutoring, she’s thinking about designing health systems and services to meet the population’s needs.

Olga Pagan

Olga grew up in Nanuet, NY. From there, she headed to Yale to study Psychology and then Stanford for her Master's in Education.  Olga taught for 5 years in Denver, CO before coming back to New York, where she is currently pursuing a PhD in Applied Psychology. Aside from her studies and tutoring, Olga loves to sing and coach competitive gymnastics. 

David Seibert

David grew up in Des Moines, IA. After earning a BA and MA in Linguistics at the University of Iowa, he taught English in Seoul, South Korea for two years. He returned to the U.S. and attended the New York University School of Law, graduating with a JD.


Amanda Tingle-Oline 

Amanda grew up in Philadelphia and graduated from West Chester University of Pennsylvania with her Bachelor's Degree in Secondary English Education and a minor degree in Journalism.  She taught English, Journalism, and Algebra at a charter high school in Northeast Philadelphia for four years before relocating to New York City this past summer.  Amanda has several years of tutoring experience, specializing in SAT prep, College Essay writing, and general English and Mathematics.  In her spare time, Amanda enjoys exploring NYC, reading, crocheting, binge-watching Netflix, and spending time with family.

Anya Whelan-Smith

Anya Whelan-Smith graduated summa cum laude and Phi Beta Kappa from Barnard College of Columbia University, where she earned her BA in Dramatic Arts. She also studied American History, English literature, and calculus. Anya has several years of tutoring experience, during which she has specialized in standardized test prep (SAT, ACT), as well as in high school level math and writing. In addition to tutoring, Anya is a New York based actress. She is currently pursuing her MFA at Juilliard.

Ione Wang

Ione was born in Queens and raised between New York and Shanghai. She attended Hunter College High School and graduated from Columbia University with a Bachelor's in Visual Arts and Art History. She's lead art workshops and tours in two different museums abroad. These days, she's working at the Museum of the Chinese in America. She writes, she draws, and she pets cats.

Amy Zhu

Amy Zhu received her MS in organic chemistry from Iowa State University. She did her research in organometallic catalysis and published 5 high impact papers in her field. Amy has a passion for education and has been teaching math and chemistry from middle school/through college level (Algebra, Geometry, Trigonometry, Pre-Calc, Chem, etc). Amy also specializes in standardized test preparation (SAT, ACT math & science, SAT Subject math level 1&2, SAT Chem, AP Chem, NYS Regents, SHSAT, Hunter, etc.). She has helped many students gain confidence and improve considerably in both their understanding of the subject matter as well as their test taking skills. In her spare time, an avid hiker and a fan of oldies music and movies.