About Us

The Tungsten Difference

Tungsten Prep is a woman-owned local business dedicated to helping students succeed and find joy in learning.

We believe students thrive when they find that just-right tutor who understands their learning style, inspires them to work harder. And hopefully makes them laugh.

Our team is the key to that mission. We are diverse in every sense of that word – from our backgrounds to our expertise to our teaching style. And we are proud to offer role models whose own life experiences and professional accomplishments encourage students to rethink their preconceived limits and dream big.

But more than that, Tungsten Prep is motivated by Edison’s conviction that success is the product of grit, self-belief, and a willingness to fail. These are the values we strive to instill in our students.

MEET THE FOUNDER

Sarah Gonzales - Tungsten Prep FounderHello! I’m Sarah Gonzales, founder of Tungsten Prep.

I started my first tutoring “company” at 16, darting around my hometown of Rye, New York to help my classmates with their homework.  As an undergraduate at Harvard, I taught English to new immigrants, and I later taught SAT classes at Kaplan to support a writing habit, which included co-authoring the first-ever backpacker’s guide to southern Africa.

My nomadic spirit and love of country led me to a career in the Foreign Service.  Over 14 years, I served on four continents. I helped Liberia resolve a crushing debt load brought on by two decades of civil war, established scholarship programs that allowed Afghan girls to attend school, and served on the board of Israel’s Fulbright program. I met heads of state and warlords, oligarchs and philanthropists. But the people who inspired me most were the teachers and students.

Today, I share these lessons with my students. It’s been my honor to be a humble witness to history, and I love to make those events come alive for my students.

When I am not tutoring, I am at home in Washington with my patient husband and our Belgium-raised babies, who insist that chocolate is an essential food group.

MEET THE TEAM

Zahraa Alnajaar

Foreign Languages

Meet Zahraa

Ingrid Biedron

Biology | Environmental Science | Math | English | Writing

Meet Ingrid

Nicole Bonan

Biology | Spanish | General Studies

Meet Nicole

Erin Conn

AP Biology | AP Chemistry | AP Environmental Science | Math

Meet Erin

Kenisha Ford

Math | Physics

Meet Kenisha

Sarah Gonzales

Math | Social Studies | English | Test Prep

Meet Sarah

JJ Harkema

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

Meet JJ

Claire Healy

Greek | Latin | English | History

Meet Claire

Caitlin Jordan

AP English | History | Spanish

Meet Caitlin

Carol Kong

AP Chemistry | AP Calculus | AP Statistics

Meet Carol

Esther Lee

AP Economics

Meet Esther

William Martin

AP English | Writing | Math | SAT | ACT

Meet William

Kristen Mastropole

SAT and ACT Prep | Curriculum Development

Meet Kristen

Stanley Maxson

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

Meet Stanley

Brittney Menefee

AP Chemistry | AP Calculus

Meet Brittney

Evans Mullan

AP Calculus | AP Statistics | AP Economics

Meet Evan

Joan Reger

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

Meet Joan

Erik Roodzant

Latin | Greek | English | Math

Meet Erik

Bushra Shamma

Algebra | Geometry | Pre-Calculus

Meet Bushra

Emily Somberg

Foreign Languages | English

Meet Emily

Charlezetta "Charley" Stokes

AP Physics | Math

Meet Charley

Lynda Vargha

AP Macroeconomics | AP Microeconomics

Meet Lynda

Janelle Vorreiter

AP Physics | AP Calculus

Meet Janelle

Ashley Yiu

AP Computer Science | Chinese

Meet Ashley

Rachel Zayas

Science | Math | English | General Studies

Meet Rachel

Chris Wickham

AP Calculus | AP Statistics | History | English | Spanish

Meet Chris

Tyler Rippel

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

Meet Tyler

Ingrid Biedron

Biology | Environmental Science | Math | English | Writing

Meet Ingrid

Nicole Bonan

Biology | Spanish | General Studies

Meet Nicole

Erin Conn

AP Biology | AP Chemistry | AP Environmental Science | Math

Meet Erin

Kenisha Ford

Math | Physics

Meet Kenisha

Carol Kong

AP Chemistry | AP Calculus | AP Statistics

Meet Carol

Kristen Mastropole

SAT and ACT Prep | Curriculum Development

Meet Kristen

Brittney Menefee

AP Chemistry | AP Calculus

Meet Brittney

Evans Mullan

AP Calculus | AP Statistics | AP Economics

Meet Evans

Joan Reger

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

Meet Joan

Charlezetta "Charley" Stokes

AP Physics | Math

Meet Charley

Janelle Vorreiter

AP Physics | AP Calculus

Meet Janelle

Ashley Yiu

AP Computer Science | Chinese

Meet Ashley

Rachel Zayas

Science | Math | English | General Studies

Meet Rachel

Tyler Rippel

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

Meet Tyler

Ingrid Biedron

Biology | Environmental Science | Math | English | Writing

Meet Ingrid

Nicole Bonan

Biology | Spanish | General Studies

Meet Nicole

Erin Conn

AP Biology | AP Chemistry | AP Environmental Science | Math

Meet Erin

Kenisha Ford

Math | Physics

Meet Kenisha

Sarah Gonzales

Math | Social Studies | English | Test Prep

Meet Sarah

Carol Kong

AP Chemistry | AP Calculus | AP Statistics

Meet Carol

William Martin

AP English | Writing | Math | SAT | ACT

Meet William

Kristen Mastropole

SAT and ACT Prep | Curriculum Development

Meet Kristen

Brittney Menefee

AP Chemistry | AP Calculus

Meet Brittney

Evans Mullins

AP Calculus | AP Statistics | AP Economics

Meet Evans

Joan Reger

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

Meet Joan

Erik Roodzant

Latin | Greek | English | Math

Meet Erik

Bushra Shamma

Algebra | Geometry | Pre-Calculus

Meet Bushra

Charlezetta "Charley" Stokes

AP Physics | Math

Meet Charley

Janelle Vorreiter

AP Physics | AP Calculus

Meet Janelle

Rachel Zayas

Science | Math | English | General Studies

Meet Rachel

Tyler Rippel

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

Meet Tyler

Chris Wickham

AP Calculus | AP Statistics | History | English | Spanish

Meet Chris

JJ Harkema

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

Meet JJ

Caitlin Jordan

AP English | History | Spanish

Meet Caitlin

Esther Lee

AP Economics

Meet Esther

Stanley Maxson

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

Meet Stanley

Lynda Vargha

AP Macroeconomics | AP Microeconomics

Meet Lynda

Chris Wickham

AP Calculus | AP Statistics | History | English | Spanish

Meet Chris

Ingrid Biedron

Biology | Environmental Science | Math | English | Writing

Meet Ingrid

Erin Conn

AP Biology | AP Chemistry | AP Environmental Science | Math

Meet Erin

Sarah Gonzales

Math | English | Test Prep

Meet Sarah

Claire Healy

Greek | Latin | English | History

Meet Claire

Caitlin Jordan

AP English | History | Spanish

Meet Caitlin

William Martin

AP English | Writing | Math | SAT | ACT

Meet William

Stanley Maxson

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

Meet Stanley

Joan Reger

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

Meet Joan

Erik Roodzant

Latin | Greek | English | Math

Meet Erik

Emily Somberg

Foreign Languages | English

Meet Emily

Rachel Zayas

Science | Math | English | General Studies

Meet Rachel

Chris Wickham

AP Calculus | AP Statistics | History | English | Spanish

Meet Chris

Tyler Rippel

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

Meet Tyler

Nicole Bonan

Biology | Spanish | General Studies

Meet Nicole

Sarah Gonzales

Math | Social Studies | English | Test Prep

Meet Sarah

William Martin

AP English | Writing | Math | SAT | ACT

Meet William

Kristen Mastropole

SAT and ACT Prep | Curriculum Development

Meet Kristen

Joan Reger

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

Meet Joan

Rachel Zayas

Science | Math | English | General Studies

Meet Rachel

Zahraa Alnajaar

Arabic

Meet Zahraa

Claire Healy

Greek | Latin | English | History

Meet Claire

Caitlin Jordan

AP English | History | Spanish

Meet Caitlin

Erik Roodzant

Latin | Greek | English | Math

Meet Erik

Emily Somberg

Foreign Languages | English

Meet Emily

Ashley Yiu

AP Computer Science | Chinese

Meet Ashley

Chris Wickham

AP Calculus | AP Statistics | History | English | Spanish

Meet Chris
“We were so pleased with Bushra’s excellent math knowledge, patience, flexibility with scheduling and positive attitude.  Our daughter’s teacher was not terribly enthusiastic or available, and our daughter started out the year with D’s.  But thanks to Bushra, she ended up with a strong B and a pass advanced score [Virginia’s highest score on standardized tests]!  Bushra was a pleasure to work with.”

— Laura, mother of George C. Marshall High School sophmore

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