Personalized English classes with a native speaker online.

I specialize in TOEFL iBT preparation,

accent reduction and pronunciation.

Tell me your goals and I will develop an individualized course just for you!



Tuesday January 31st, 2017


Saturday January 28th, 2017


Sunday January 15th, 2017

Be the first to know about future workshops, webinars and special classes!

Email me today at:

» One-to-one Classes

  • My personalized classes are fun and creative!
  • Learn new vocabulary and expressions.
  • Improve pronunciation and practice correct grammar in a natural, relaxed way.
  • Discuss current events and topics that interest you.
  • Learn from high-quality reading and listening materials as well as newspapers, magazines, blog posts, videos, songs and podcasts.

» Online

  • During our classes we will use free, state of the art software that is easy to use.
  • You can record your classes for future reference.
  • Connect to your online class from your personal computer, tablet or smart phone.
  • Request your FREE trial class and start improving your English today!

» Flexibility

  • Schedule classes when it’s convenient for you!
  • Learn English on your way to work, in between classes or while your children are at school.
  • Enjoy the benefits of learning English with a native speaker from the comfort of your own home.
  • Pay only for what you need. Buy individual classes or packs of ten.

TOEFL Preparation


per 60 minute classBook Class

TOEFL Speaking and Writing Analysis


evaluationBook Class

TOEFL Writing Workshop


Four 90-minute classes

Book Class

Ladies Fluency Circle


hour, (150 hours a week for 2 months) Book Class


Business English


per 50 min classBook Class

General English


per 50 min classBook Class

Focus: Pronunciation


per 60 minute classBook Class

Summer 2018 Discount! Special Discount!

% -15

one package of 15 TOEFL lessonsBook Class

» Book your free trial class now

  • English for the Workplace

  • Communicate with your colleagues in a more confident and relaxed manner!

  • Lawyer? Pharmacist? Chef? Creative Director? Regardless of your profession, I can create a personalized course for you.
  • Need to make a presentation for an important client in English? Going on an important interview?
  • Role-play with your teacher to make sure you are 100% prepared!


  • General English

  • Keep your English current and fluent!

  • Are you preparing a trip to an English speaking country? No mp3 or phone app can prepare you like real conversation with a native speaker.
  • Learning a foreign language takes time, energy and dedication. Maintain your English and stay current with personalized conversation classes wherever you are.

  • University Preparation

  • Learn about American academic culture and university life!

  • Get the scores you need on the TOEFL exam.
  • Are you planning to study abroad? What will your classes be like? How should you communicate with your professors?
  • Learn about social events and how to make friends!
  • Don’t let cultural differences prevent you from getting the most out of your education!

Email me today for more information about

private lessons, group lessons and workshops!

Hi everyone! My name is Sierra and I have been teaching English for over 12 years.

I currently live in southwestern France where I teach English and study French. I lived in Madrid for 6 years and am fluent in Spanish. I lived in Beijing for 4 years and speak conversational level Chinese. Trust me, I know the challenges and rewards of learning a second language.

Where am I from?

I was born in New York and raised in New England, a place you are probably familiar with because of its many famous universities like Harvard, Yale, and M.I.T.

Where did I study?

I received my Bachelor of Arts in Social Science from Fordham University in New York City  in 2001.  After graduation I worked as a public school teacher and studied for my Masters degree at the same time. In 2004 I graduated from Pace University in Manhattan with a Master of Science in Teaching. In 2004 I received my TEFL certification in Madrid, Spain.

Where have I taught English?

  • Madrid, Spain − In 2005 I moved to Madrid to study Spanish and start my career as an English teacher. In Spain I taught children, teenagers, teachers and business professionals.
  • China University of Geosciences, Beijing − In 2009 I moved to Beijing where I taught undergraduate, graduate, and Ph.D candidates. I prepared my students academically and taught them about my background, education and culture.
  • Beijing Language and Culture University − I directed and managed an after school program for kindergartners and trained other teachers to work with the children in this program.
  • Columbia University − I worked as an adjunct professor at the American Language Program at Columbia University during the summer of 2013.

What about my online experience?

I have been teaching online for over 5 years. In my private, one-to-one classes, I give students the individual attention they need. Many of my students come to me for pronunciation help and accent reduction. I demystify difficult language proficiency exams such as the TOEFL, TOEIC and IELTS, and help students get the scores they need. I prepare students for job interviews, help them with college and university entrance applications, improve conversation skills, and help individuals who already speak English maintain their fluency.

What do you need help with?

Be the first to know about future workshops, webinars and special classes!

Email me today at:

Trial lesson

The trial lesson is free and lasts between 30 and 35 minutes. During this first session I will ask you about any previous English classes you have taken and your goals as a language learner. There is no obligation to take any more lessons after the trial lesson. Not all requests for a trial lesson can be fulfilled. One trial per student.

Payment and Cancellations

Full payment must be made at least 24 hours before the start of the lesson in full. In order to confirm a lesson a time must be agreed upon by both parties. If you want to cancel an individual lesson for whatever reason you will receive a full refund if you cancel 24 hours or more before the agreed start time of the class. If you cancel with less than 24 hours before the start of the class no refunds will be given.

Showing Up Late to Class

Punctuality is key to online learning. You have a 10 minute tardy window in order to continue with the remaining minutes of your lesson, after 10 minutes the English teacher will exit the virtual classroom and the lesson will be charged accordingly.

Time Changes

If you would like to change the time of any class a 24 hour notice must be given. Rescheduling your class will depend on the flexibility for that week. If a time cannot be found within the same week the class will be added on to the end of your package. If you do not give 24 hours notice, you will lose the class.

Lesson Packs

If a pack of 10 lessons are booked, these lessons must be taken within a 10 week period. If a pack of 20 lessons are booked, they must be taken within a 20 week period. Monthly packs expire 30 days after payment is made. Any holidays or sick days teacher takes are excluded – you will not be charged.

Vacations and Sick Days – Teacher

Vacations will be known in advance. If for whatever reason the teacher is not able to make the lesson, the payment sent may be used to schedule a future class. If you would prefer, a full refund will be given.

Sierra Forest

Sierra Forest

Owner and Director - Sierra Forest English Academy

Design by Lucas Giraldez and Illustration by Rocio Cañero