English & Library Specialists

TIS students study English with specialist teachers one hour per day starting in first grade. As research shows, there is a natural skills transference between languages that helps students develop literacy in English and in their target language. Learn more about the TIS English program at intlschool.org/english.


English Specialists

Deanna Sundberg
English Specialist

  • From Clayton, California
  • Bachelor of Arts in Cultural Anthropology from University of Montana
  • Teaching since 1998; teaching full-time at TIS since 2014

Prior to moving to Portland in 2013, I lived in Barcelona, Spain for ten years where I worked as an elementary English Language teacher. After living abroad for so long, I feel right at home in the international community of TIS and truly value our diversity and uniqueness.

While I feel like I have learned so much in the past 18 years of teaching, the learning continues each year with my new students as I strive to connect with each child and really work on building their confidence with reading and writing. I want to nurture their individuality and creativity and help them feel successful.

Some of my hobbies include traveling, photography, being creative in the kitchen, swimming, sewing, and especially being a mama to my 5-year-old and 10-month-old daughters and spending time with my husband. I became a TIS parent last year, which has been fun and has connected me even more to the school community!

Lauren Miller
English Specialist

  • From Akron, Ohio
  • Bachelor of Arts in Sociology from Miami University of Ohio
  • Master of Arts in Teaching from Lewis & Clark College
  • Teaching at TIS since 2016

Before moving to Portland, I lived abroad teaching English to kindergarteners in Seoul, South Korea, and pre-kindergarteners in Shanghai, China. I thoroughly enjoyed the experience of immersing myself in another culture, language, and way of life. From these experiences, I knew I wanted to be a part of the international community at TIS. I feel so lucky to be surrounded by like-minded students and staff where international-mindedness is valued and global citizenship is practiced on a daily basis.

Meghan Robertson
English Specialist

  • From South Dakota
  • Bachelor of Arts in Elementary Education from the University of South Dakota
  • Master’s in Education from the University of South Dakota
  • Teaching since 2011; teaching at TIS since 2014

Meghan comes to us from Sioux Falls, South Dakota, where she taught for three years. Most recently, she was a first grade teacher in the Parker School District, where she established a uniform reading framework at the elementary level and helped to organize elementary-level reading assessments and progress monitoring that promoted constant progress and review of current practices. She has also worked on integrating technology into literacy instruction, which led to increased student engagement.

Some of Meghan’s hobbies include: cooking, music, reading, and anything outdoors. Meghan is most excited about working in a diverse community where the staff and students have unique backgrounds and experiences in travel and language.

Shelley Arnold
English Specialist

  • From Palm Beach, Florida
  • Bachelor of Education, University of Florida
  • Master of Education, University of Florida
  • Teaching since 2008, at TIS since 2017

It’s been great to come back to the states after teaching overseas for most of my career. Although I started teaching in Atlanta, Georgia, I have taught internationally in Dubai, Hong Kong, and most recently, Austria as well. The experience of educating students from around the world has been priceless and the appreciation for different cultures, languages, beliefs, and values from across the globe is something I hold dearly. I have been an IBPYP educator for many years and I am a huge advocate of facilitating an inquiry-based approach towards learning. I want to foster a class filled with rich opportunities for exploration, discussions, conversations, collaborations, connections, debates, ponderings, questions, epiphanies, and more!

When I’m not teaching, I love to bake, cook, sing, dance, play the ukelele, and travel the world!

Amber Oerther
English Specialist

  • From Oregon
  • BS Elementary/Middle School Education,Western Oregon University
  • M.Ed/Special Education Endorsement, High School Language Arts Endorsement, Pacific University
  • Teaching since 2010

I have spent the past six years teaching ELA at St. Helens High School, the first three years in a special education resource room and the second three years with high school sophomores. I am excited to come to TIS because I became a teacher to teach elementary school until my career took me in a different direction. My favorite part about teaching is making connections with students in order to help them reach their goals. I believe in challenging all students to achieve more than they ever thought possible. I am thrilled to be working with a new group of students so that we can all learn together in an environment based on culture and friendship.

Outside of school, I am a Zumba instructor. I love dancing and making people smile through song and dance. I also enjoy cooking, reading, knitting and going on adventures of any kind.

Tessa McCoy
English Specialist

  • MA in Education & Curriculum Development, Cal State Dominguez
  • National Board Certified Teacher
  • BA in English & Writing, University of California, Berkeley
  • Cross-cultural Language and Academic Development (CLAD) Certified
  • 18 years of teaching experience

I like working at TIS because I believe in the program, and even after teaching for so many years, I feel I can grow and learn so much professionally and personally here.

Outside of school, I enjoy on my own are spending time with my family outdoors, gardening, hiking, biking, and kayaking. I love to read and go shopping for antiques.


Dan Kelley
Head Librarian

  • Master’s in Library Sciences, University of Maryland
  • BA in History and Political Science, Indiana University
  • Fulbright Scholar
  • Over 20 years experience

I am delighted to be joining TIS this year! I’m looking forward to working with teachers to help develop strong readers and curious minds. I want to help the kids learn to love stories, and to help them learn to tell their own stories as well! I’m excited to collaborate with the diverse group of teachers on the IB curriculum and to contribute to a community that values international education.

Like most librarians I enjoy reading, gardening and cats. Perhaps unlike most librarians I enjoy playing sports (Ultimate Frisbee, ping pong, basketball and soccer) and competitive board games.  I have a lovely family that I adore, which includes my wife, our 12 year old son and our 15 year old daughter, and a Belgian Sheepdog named Zizou. We like to get out into nature whenever we can, and we are all committed global explorers.

Tomoyo Wells
Library Specialist

  • From Japan
  • B.A. in History from Portland State University
  • At TIS since 2010

I am originally from Japan and have been living in the US for 9 years. I graduated from Portland State University with a Bachelor’s degree in History. During my school year, I spent most of my time researching and writing in the library, because I loved being there. Whether it is the school or my small neighborhood library, there is something about the atmosphere, smell, and sound of a library that I love.

After I graduated from college, I volunteered at the Oregon Historical Society Museum. Afterward, I started working at TIS as a library assistant and I am happy to be part of TIS community.

My goal is to help students find their potential emotionally, intellectually and socially by delivering good stories and providing an environment where they can share their ideas and have access to information to find the answer to their questions.