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Zahraa Alnajaar

Arabic

Zahraa makes learning Arabic a cultural adventure. She believes students learn best when they understand not just the subjects and verbs, but the art, music, geography and history that enriches and informs the language. A veteran teacher with 13 years’ experience, Zahraa is on the cutting edge of using technology and online learning resources to enhance her students’ understanding and enthusiasm for Arabic.

Zahraa is a lecturer in Arabic at American University and teaches classes at both the Middle East Institute and Johns Hopkins’ School of Advanced International Studies. She has a PhD in literature from Aleppo University.

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tutornicole

Nicole Bonan

Biology | Test Prep | General Studies

Nicole is a PhD candidate in Biology at George Washington University and has taught introductory Bio labs at American University, inspiring dozens of non-science majors each year to appreciate the connections between the life sciences and their daily lives. She loves helping students get their hands dirty in the lab, and has served as a mentor to undergraduates pursuing their first independent research projects.

A true humanist, Nicole excels at helping students across the range of subjects, coaching them in writing today and Math tomorrow. And as a lifelong Washingtonian and National Cathedral School alumna, she has a unique ability to relate to our local students and coach them through the juggle of high school in the DMV.

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tutorkylie

Kylie Cash

French | Spanish | English | Math 

Whether it’s unlocking the mysteries of the subjunctive or helping students discover their inner English-language wordsmith, Kylie is dedicated to making language study fun and accessible. She honed her teaching skills as a tutor for the Clemson University sports program, where she mentored busy Division I athletes in Math, English, Spanish, French and study skills. Her adventurous spirit has taken her from South Carolina to Seville, Lyon and Paris, where she has studied, and she is currently pursuing a Master’s degree in Spanish from American University. Kylie is the right tutor for students who want help in multiple subjects and welcome a cheerful and encouraging mentor to boost their motivation and refine their study skills.

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tutorerin

Erin Conn

AP Biology | AP Chemistry | AP Environmental Science | Math

Erin’s passion for science education has led her to become an unexpected role model for gender equity and diversity in STEM and higher education. After some timely tweets on women in science went viral, she was able to raise funds to establish the Women in Science and Education organization at Georgetown, where she is completing her PhD in Biochemistry.

Her love of teaching is driven by the extraordinary mentors she herself has enjoyed, and she hopes to pay that forward by inspiring scientific curiosity in a new generation of high school students.

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tutorjamie

Jamie Dorner

Spanish | Physics | Math

In Jamie, you’ll find a Latin American culture fan who has a knack for figuring out the most complicated physics equation or math conundrum. This is thanks to past experience combining her language talents with a love of economic analysis to support expansion by businesses seeking new opportunities in Latin America. An extrovert who speaks Spanish at a near-native level of fluency, she has substantial experience helping others as both a tutor and translator. This avid cook connects with students not only through an empathy for those who are struggling, but also by discovering shared favorite cuisines.

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tutormatthew

Matthew Fredericks

AP English | AP World History | AP U.S. History | Philosophy | Greek | Latin | Math

Matthew is a true renaissance man with a passion for learning and teaching. An area native, he returns to the DMV after recovering from a travel bug that took him to 59 countries. He studied in Rome, London, Russia and India and taught Math and History for Teach for America in Brooklyn. Participating in a fundraising project to fight human trafficking in West Bengal changed his life, led to divinity studies and, eventually, a five-year stint as assistant pastor in Hong Kong’s oldest church. Never one to sit still, he simultaneously completed a Master’s of Creative Writing. Matthew is engaging and brings a worldly, cosmopolitan perspective to tutoring both the humanities and Math. He is currently at Georgetown University laying the groundwork for doctoral study in the classics. Matthew never achieved his childhood dream of becoming the next Michael Jordan, but he has bicycled across the United States, runs marathons and loves to share his wide-ranging book tastes with his students. His motivation to push his body and mind is mirrored in his knack for pushing students to reach outside their comfort zone while ensuring that they come away with greater confidence and an improved understanding of the subject at hand.

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tutorsarah

Sarah Gonzales

Math | SAT/ACT Prep | English | History

In addition to managing the business, mentoring tutors and supporting parents, Sarah loves working with students. Her versatility means she is a good fit for students who want a comprehensive approach to academic support.

She works with busy juniors and seniors trying to juggle test prep and a demanding AP schedule, students with some learning differences who need help with Math, Writing and overall study skills, and students who need a serious confidence boost in Math. Her hands-on approach with both students and their families means she never takes on more than 10 students at a time.

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tutorjj

JJ Harkema

AP U.S. History | AP World History | AP European History | AP Government

Born and raised in the Netherlands, JJ is uniquely positioned to help students grasp history’s sweeping trends. He offers students a fresh appreciation of the events, values and unexpected twists that make our country what it is today and prepares them for the big picture analytical thinking the AP exams require.

He is particularly adept at helping students tackle AP courses with heavy reading loads and emerge with their sanity intact.

JJ has more than a decade of experience working for leading management consulting firms on three continents and holds master’s degrees in economic history and U.S. Government from the University of Leiden and in public policy from Erasmus University.

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tutorrebecca

Rebecca Hendrickson

SAT and ACT Test Proctor

After receiving her undergraduate degree in Communication Studies from James Madison University, Rebecca continued her education at American University where she earned her Master’s in Strategic Communication. During her time at American, Rebecca served as one of Tungsten Prep’s first employees, marketing the company to prospective students and families. After going on a brief hiatus to start her first full-time job, she is now back to help the Tungsten family out as one of our SAT/ACT exam proctors, and can’t wait to see the Tungsten Prep family grow even more!

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tutorcaitlin

Caitlin Jordan

AP English |History | Spanish

Caitlin is a lover of all things literary. She is pursuing her Master’s in English Literature at Georgetown University. Caitlin has taught Middle School and High School English in Florida and Idaho, where she served as a full-time residential advisor and summer camp counselor. Her experience both living and working with adolescents gives her an empathy for her students’ goals and interests, and makes sure she keeps them laughing. From the passionate reader to the reluctant writer, Caitlin loves meeting her students where they are and helping them find their inner bookworm. Whether they are vexed by grammar or bored by literature, Caitlin loves building her students’ understanding of the English language from the ground up. Watch out: they may even learn to love Hawthorne and Dickens!

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tutorcarol

Carol Kong

AP Chemistry | AP Calculus | AP Statistics

Carol is the go-to tutor for juniors and seniors with that terrifying mountain of AP STEM classes.
She currently teaches introductory chemistry labs for non-science majors at American University, and with humor and patience, she loves helping students connect the classroom and their daily lives. As an undergraduate at SUNY Plattsburgh, she ran the school’s busy Math tutoring center, where she coached hundreds of students through the perils of Calculus and Statistics. Carol is the right tutor for any student who needs a confidence boost and wants their AP classes delivered with a side of unflappable calm and a huge smile.

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sheena

Sheena Martin

Outreach Coordinator and Business Manager

Sheena is the motor that keeps the Tungsten Prep engine running! A veteran of multiple start-ups, you can rely on this talented working mom’s uncanny organizational skills and yen for efficiency to help manage your academic juggle. As our business manager and outreach coordinator, Sheena helps parents find that just-right tutor and navigate the alphabet soup of SAT, ACT, APs or SSAT. Have a question on billing? Sheena is here to help.

A native of Virginia, Sheena has lived around the country with her active duty military husband and two kids. Her philosophy is that no one-size-fits-all approach works for families or for students, and her mission is to offer parents practical and candid advice that keeps family life balanced and students happy. She also believes that supporting teenagers requires a good sense of humor and aims to keep parents smiling.

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tutorkristen

Kristen Mastropole

SAT and ACT Prep | Curriculum Development

From the Arctic to the Galapagos, Kristen has crossed the oceans as a climate scientist with a passion for biodiversity. She has more than a decade of experience as a tutor, most recently as the director of STEM education at a tutoring center in Hong Kong. Kristen’s breadth of experience with high school students benefits all our students, and she helps design curricula for both standardized tests and general study skills.

And while her research vessels may have taken her to the far corners of the Earth, Kristen always returns to her native DMV, and her students find relevance in her own hometown experiences as a graduate of Georgetown and the Holton-Arms School.

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Stanley Maxson

AP U.S. History | AP World History | AP Government | English and Writing

For Stan, history is not about memorizing dates and names. It is an opportunity to develop empathy for the challenges people and societies faced and to draw from their mistakes and triumphs to better understand our present. Stan’s dynamic approach to the web of history, politics and government helps students build critical thinking skills and master the arts of research and writing.

Stan is a PhD candidate in U.S. History at the University of Maryland, where his research focuses on the unexpected and creative ways African-Americans organized during Reconstruction to build a collective political voice. He has taught undergraduate History and Writing, and even taught English in South Korea. Stan is the ideal tutor for students drowning in dense textbook history, or those who need help with reading comprehension, research papers or analytical writing.

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tutorbrittney

Brittney Menefee

AP Chemistry | AP Calculus

Brittney is pursuing a PhD in analytical chemistry from Howard University. When she arrived on campus and discovered there was no local chapter of Women in Science and Engineering (WISE), she went ahead and founded it!

Brittney applies that same hands-on approach to teaching chemistry; she believes that when students truly understand and implement concepts, there’s no need for memorization. She also loves to bring chemistry out of the textbook and into the real world – ask her how they make green ketchup and purple Sprite!

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tutorJackson

Jackson Monzón

AP Spanish | Arabic | French | AP World History 

Jackson is a world traveler who loves to spark students’ curiosity for foreign cultures. A phD candidate in Spanish at the University of Maryland, Jackson has five years of experience as a teacher and tutor in Arabic, French and Spanish. When teaching, he draws from his experiences to give students not only languages lessons, but a window onto culture, politics and diverse global communities.

Jackson is the right tutor for students struggling with a foreign language who want a patient, systematic approach to demystifying grammar and literature and hope to gain confidence in their speaking skills.

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tutorevans

Evans Mullan

AP Calculus | AP Statistics | AP Economics

Evans is a mathematician on a mission. As a middle school Math teacher and basketball coach at Mater Dei in Bethesda, he spent five years helping young men become thoughtful citizens and lifelong learners, and he carries those values to Tungsten Prep. He has a Master’s Degree in Math and Statistics from Georgetown, but is equally versed in History, English and Physics.

His teaching experience gives him insight into what teachers and parents expect from students, and his versatility makes him an ideal fit for students who want help across a wide range of subjects.

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tutormichelle

Michelle Orabona

AP English | Writing | Math | Middle School Science 

Michelle’s literary talents grew from a childhood interest in dance that transformed itself into a lifelong love of writing. A published poet and literary editor, Michelle teaches Writing and Literature at George Mason University and loves helping students find their inner bookworm and gain confidence in their writing skills. Michelle also nurtures the underlying skills to succeed as a writer, including time management, active reading, and critical thinking.

She is the right tutor for students who need a grammar brush-up, dreads the five-paragraph essay, or can’t figure out how to begin that massive research project. No stranger to interdisciplinary tutoring, Michelle is also adept at helping middle school students who want support in Math, Science, and English or History.

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tutorjoan

Joan Reger

AP Biology | AP Chemistry | AP Statistics | Physics | Math | English | SSAT

We defy you to find a subject Joan can’t teach. Joan is pursuing a PhD in Biology at Georgetown. But she first fell in love with the sciences as a high school student, when great teachers helped her discover the excitement of researching our biological world. She loves tutoring because it helps her pay that forward, and she mentors students with great patience and warmth, gently encouraging them to find their own full potential. A true humanist, Joan is as much at home in the realm of writing and literature as she is in the sciences, and she logged hundreds of hours tutoring high school students in both STEM subjects and English while attending Emory University. She is the ideal tutor for students who want a versatile and confidence-boosting guide and welcome support in multiple subjects.

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tutortyler

Tyler Rippel 

AP Biology | AP Chemistry | AP Environmental Science | Math | English

Tyler understands what it’s like for students who struggle. A self-described procrastinator and easily distracted student in high school, Tyler has made it his mission to help a wide range of learners find study habits that work for them and passions that consume their attention. Now a doctoral candidate in Biology and Ecology at Georgetown, Tyler is as comfortable in a salt marsh as he is in the classroom.  

Tyler was a star middle-distance runner at Villanova, so he also understands how to help busy athletes juggle schoolwork, sleep, and sports. Tyler is the right fit for students who need help across a variety of subjects, and those who need support in developing better time management and study skills.

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Erik Roodzant

Latin | Greek | English | Math

You’ll never call them dead languages again! Erik loves helping students bring the Classics alive. Let him connect Caesar with modern politics and Homer with Star Wars! Erik is pursuing a post-baccalaureate degree in Classics at Georgetown. As an undergraduate at Stanford, he tutored students in Math, English and test prep. He is the ideal tutor for the Classics student who also needs help with other subjects and wants support on study skills.

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tutorbushra

Bushra Shamma

Algebra | Geometry | Pre-Calculus

Bushra’s lively and relatable approach to tutoring is informed by her two decades of experience teaching high school Math and her experience as a banking and IT executive. Bushra taught Math at some of the most rigorous schools in Washington and New York, including The Potomac School, The Spence School and The Dalton School, and has experience guiding both the most gifted math learners and inspiring those who have never really seen the point of Math.

She holds a Master’s in Education from Harvard and an MBA from MIT. When she is not teaching, Bushra is an accomplished artist whose work has been featured at juried shows both in Washington and internationally.

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tutorgianna

Gianna Shipp

SAT | ACT | AP Biology | Math | History | General Studies  

Teaching is in Gianna’s veins – literally! She hails from a family of educators. Gianna’s commitment to service has led her to pursue dual careers in education and medicine. As an instructor in Georgetown’s alternative medicine program, and a specialist in palliative care, Gianna brings a compassionate and holistic approach to her students, including integrating mindfulness into her teaching practices. Another of Gianna’s strengths is her creativity: a true jack of all trades, she has played the piano since childhood and enjoys graphic design as a creative outlet. Gianna is the right tutor for students juggling multiple subjects, or for anxious or overworked students who could benefit from calm and steady support.

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tutoremily

Emily Somberg

French | SSAT | Middle School General Studies

Emily was raised halfway between Washington and Paris and serves as linguistic and cultural interpreter for her students. She helps students get to the bottom of French grammar, encouraging them to understand and not merely memorize. She has a particular knack with our middle school students, and her patient and systematic approach helps those newer to homework refine their test taking, critical thinking and time management skills and prepare for the rigors of high school.

Emily is currently a Presidential Fellow pursuing a master’s degree in anthropology from George Washington University. Emily also works as a Graduate Student Coordinator at the George Washington University’s Multicultural Student Services Center.

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tutordanny

Danny Stauffer

AP Economics | AP Calculus | AP Computer Science | AP Physics

Danny brings his talents as a data crunching guru to tutoring Calculus, Physics, Economics and Computer Science. To him, Calculus isn’t just another math class to endure, but a varied, complex, and exciting terrain that he enjoys helping students master. For students struggling with the most challenging subjects, Danny offers empathy and encouragement. He recalls struggling through his first high high school calculus class, and understands the toll that can take on a student’s confidence and attitude towards the subject. Danny is a management consultant by day, and he loves helping his students connect the dots between advanced STEM subjects and the
real-world applications of their coursework. He is also a graduate of Bethesda-Chevy Chase High School, so offer’s an insider’s perspective for students managing the juggle of our rigorous local curriculum. Danny is both driven and laid back, and his flexible nature makes him a perfect fit for students of all levels.

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Charlezetta “Charley” Stokes

AP Physics | Math

Charley makes Physics a lot less scary. And maybe even a little fun. A veteran of Detroit’s most prestigious STEM high school, Charley can empathize with her students’ journey through the sometimes-terrifying realm of AP Physics and Calculus, and her passion for science helps them come out the other side with a newfound sense of wonder for the natural world. Ask her how she came to love vectors.

Charley is completing her PhD in Physics at Howard, where her research focuses on nanomaterials. From the Ford Motor Company’s Scientific Research Laboratories, to the Stanford Linear Accelerator Center, to NIST’s Center for Neutron Center, Charley’s work has taken her to the intersection between Physics and daily life. Her unmatched passion helps her students recognize that science is a part of life, and when we put our fears aside, there is nothing we cannot master.

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tutordaniel

Daniel Testa

AP Physics | AP Calculus | Algebra | Trigonometry | Test Prep

Dan began tutoring in early high school and has helped students in subjects ranging from middle school science to quantum physics. His relatively young age coupled with his wide variety of tutoring experience has enabled him to quickly establish strong connections with his students, helping them learn while having fun in the process. What Dan enjoys most about tutoring is forming a team with his students and being part of the growth process to achieve success through collaboration.

Originally from Long Island, Dan is graduating Georgetown University summa cum laude with a degree in Physics and Economics. He coauthored an article published in a scientific journal and has served as a Teaching Assistant for five different courses. He enjoys watching sports, traveling, and cooking Italian food with his family!

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tutorjanelle

Janelle Vorreiter

AP Physics | AP Calculus

Janelle has spent the last two decades contributing to some of the most exciting aerospace projects of our time, including the Mars Rover and the International Space Station. She has a PhD in mechanical engineering from Johns Hopkins University, where she taught both physics and engineering courses.

Janelle helps her students connect the dots between their Math and Physics classes and the exciting real-world applications these disciplines offer. As an engineer, Janelle offers a hands-on approach to problem-solving and helps students advance beyond rote textbook learning to discover the joy in scientific inquiry.

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tutorlawrence

Lawrence Waller

AP World History | AP European History | AP U.S. History | AP Government | AP Computer Science | AP Calculus AB and BC | AP English Language and Literature

Lawrence is the “wunderkind” of tutors! In high school, he earned 12 top AP scores and aced the ACT, developing unique test-taking strategies along the way, and leading him to a full scholarship at Vanderbilt University. From History to English and Calculus to Computer Science, he teaches any subject effectively with a combination of calm patience and friendly humor — his special formula for helping students find success. His experience as a history and public policy student at George Washington University coupled with his day job at the Pentagon means that he brings real-world experiences to his social sciences sessions. “Interdisciplinary” is not just a word in the dictionary for Lawrence. It is an educational approach that translates within the classroom and beyond.

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tutordenis

Denis Whelan

AP Calculus | AP Statistics | AP U.S. History | AP Government | Physics | Computer Science | English | Spanish | French

Denis loves helping students find patterns. A polyglot who is fascinated by the parallels between foreign languages and Math, Denis is a master at showing students the logic and rhythm of complex systems — from Math to Spanish to history and public policy — and empowers them to confront unfamiliar situations in a structured way. As a Fulbright Scholar in Spain, Denis opened students eyes to the world and honed their public speaking skills through Model UN. By day, he is a data scientist for the federal government, where he uses statistics to solve diverse and complex problems in the fields of cancer, infectious diseases, and genetics. When not crunching numbers, you’ll find Denis enjoying salsa and merengue dance moves.

Denis is the right tutor for students who love an extrovert with a big laugh and need support in multiple subjects from STEM fields to a foreign language.

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tutorchris

Chris Wickham

AP Calculus | AP Statistics | History | English | Spanish 

A world traveler with an enthusiasm for public policy, Chris helps students connect the dots between the classroom and the real world. Chris was a Fulbright Scholar in Madrid, where he designed and taught an American history curriculum in Spanish, and taught Middle School Math in China.

As a statistician at the Government Accountability Office, Chris translates big data into informed public policy recommendations on issues from health care to education, and his experience finding the big picture amid an overwhelming mass of information is good practice for coaching his students to find meaning in a textbook, prioritize tasks and interpret a teacher’s instructions.  Chris was a standout cross country runner at Swarthmore, so he also empathizes with student’s need to juggle school work with demanding sports and extracurricular schedule. Chris is a great tutor for students who need support across a wide range of subjects or want help in the highest levels of Math.

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tutorjenna

Jenna Wiegand

SAT | ACT | AP Environmental Science | Biology | Writing 

As someone who was diagnosed with ADHD in college, and struggled with procrastination, test anxiety and organization for years, Jenna understands what it is like to be misunderstood by teachers and not fit into the standardized expectations often found in school. She has made it her top goal to help students reach their full potential by understanding how they learn and what they wish to accomplish. With experience ranging from helping inner-city students understand basic science principles, to teaching undergraduate students advanced science concepts, she excels in helping the individual accomplish their goals.

Jenna is currently studying for her Master’s degree in Environmental Science at American University. As someone who has lived in nine houses, seven cities, and six states, Jenna helps her students build resilience and thrive in many different environments. Jenna is the right tutor for students anxious about standardized tests or those who need support getting organized, juggling multiple subjects and making schoolwork fun and engaging.

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tutorramsin

Ramsin Yadgar

AP Calculus | Earth Science | AP Chemistry |AP Biology | AP Physics | AP Computer Science | English and Reading Comprehension  

Ramsin’s lifelong passion for the sciences led him to an early career as an engineer, but his interest in helping people brought him to medicine. He draws on his varied experiences – from a Fortune 500 company to Silicon Valley start-ups to clinical work with patients – to empower his students to embrace their entrepreneurial spirit, be resilient in the face of obstacles, and approach teamwork with compassion and humility. As a current medical student at The George Washington University School of Medicine, he channels his passion for academia by tutoring students in both the sciences and humanities.

Ramsin began his tutoring career in high school and through college, and he hasn’t stopped since. A proud Californian, he believes the diversity of his home state and his experience working with a wide range of students enables him to adjust his instructional style to suit the unique needs of each learner. Ramsin is the right tutor for students who need support across a wide range of subject, for those tackling multiple AP classes, and for students who need a motivating role model to help them improve their organizational skills and spark their interest in school.

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tutorrachel

Rachel Zayas

English | Biology | Chemistry | Test Prep | General Studies

Rachel wants students to believe in the power of science to change lives. She is the founder of a biotech start-up that is developing tools for early-stage cancer detection, and she shares with her students both the exciting real-world applications of science, and the grit and determination it takes to follow your dreams.

Rachel has taught Biology and Chemistry at American University, where she received a Master’s in Biotechnology, and middle school science at charter schools in DC.

Rachel’s versatility makes her the ideal tutor for students who want overall support in science, Math, English and general study skills. Rachel also brings her entrepreneur’s sensibility to Tungsten Prep: when she is not inspiring students, she leads our business development and operations.

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