The Team - Mysa School
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The Team

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Siri Fiske, Head of School

Siri is passionate about education reform and creating learning environments that focus on the learner. A strong advocate for experiential learning, Siri has traveled the world with groups of students experiencing with them first hand the lives of others. She has taught science and math. She has designed, launched, and nourished many programs in public schools, including arts and music programs that currently reach thousands of students in the Los Angeles area. Her most recent job before moving to Washington, DC was helping to design and launch a K-12 school in South Korea.  Siri holds a BA from Sarah Lawrence College, a MA in anthropology from the University of Pennsylvania, and a MAT (masters in teaching with a focus on technology) from the University of Southern California.


Ariel Martinez Brumbaugh, Assistant Head of School

Ariel Martinez Brumbaugh is Assistant Head of School at Mysa. Ariel has eight years of experience both teaching and leading in independent schools. She has a MA in Writing from Johns Hopkins University and she teaches the Connect class and Literature. To her, Mysa is an oasis for kids who need both the freedom to be an individual as well as the support of a school family. Ariel can be found kayaking on the Patuxent River with her black Lab, Tavi, in her free time.


Shaun Johnson,  Director of Teaching and Learning (K-12)

As an educator for nearly two decades, Shaun has taught in public, private and charter schools. He earned a PhD in Curriculum and Instruction from Indiana University in 2009 and spent four years as a tenure-track assistant professor of elementary education at Towson University in Maryland. Shaun returned to the elementary classroom in 2013, teaching Kindergarten at Malcolm X Elementary School in Washington, DC. He is primarily focused on curricular theory, the history of education, social studies methods, and social activism, and is currently working on administrative credentials through Johns Hopkins. Out of school, Shaun is an ice hockey player and boxer.

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Sarah DeSilva, Science Teacher (6-12)

Sarah is the middle and upper school science teacher at Mysa school. She has been teaching middle school science for the past six years and has a B.S. in Neurobiology from the University of Maryland, College Park (UMCP). She also has an M.Ed in Curriculum and Instruction, with a focus on Arts Integration from UMCP. Her experience teaching in lower income schools and her Masters program have given her a passion for teaching learners of all abilities and backgrounds. She regularly integrates music and visual arts into her lessons and believes that all students should be given an opportunity to succeed in school. When she isn’t teaching, she enjoys playing saxophone, spending time with her husband, and cooking new vegetarian meals.


Amy Barden Gualtieri, Math Teacher (6-12)

Amy Barden Gualtieri is the math teacher at Mysa School. She has been teaching for nine years and has a B.S. in Elementary Education with a minor in Middle School Math from Salisbury University. Additionally,  she has an M.Ed in Education from Clemson University.  She thinks Mysa is the perfect place for students to learn as it allows them to master skills at their own pace in a relaxed and friendly environment. When she’s not graphing linear equations, Amy enjoys running on the Capital Crescent Trail with her husband and new baby girl.

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Trish Bogdanchik, Lower School Principal and head teacher at Mysa Georgetown

Trish is the Lower School Principal and head teacher at Mysa Georgetown. Trish comes to Washington, DC from Krakow, Poland where she was head of primary at a newly launched international school. Prior to this, Trish was the assistant principal at a large public school in Birmingham, Alabama. She has taught science and general elementary at several levels, as well as participated in a variety of leadership and curriculum positions. Trish has a BA from Southern Methodist University in chemistry and anthropology, as well as a MA in educational leadership from the University of Alabama at Birmingham. Trish is very passionate about using innovative ideas to create an engaging learning environment for children.

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Grace Wingo, Art and Technology Integration Specialist

Grace Wingo is the art teacher and technology integration specialist at Mysa School. Grace grew up taking ceramic art classes at Baltimore Clayworks and graduated with a B.A in Theatre at the University of Maryland, College Park. She has an M.S in Educational Psychology from George Mason University. She is passionate about creating learning environments that center on the learner and their interests. Prior to Mysa School, Grace taught art, creative writing, and media studies in extended education programs, community art centers, independent schools, and museums. In her free time, she enjoys running, meditation and visiting her hometown of Baltimore.

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Emily Wander, Spanish Teacher

Emily Wander is the Spanish teacher at Mysa School.  She received her BA from the University of Richmond in Spanish and Latin American Studies, her Masters in Business Administration from the University of Virginia’s Darden School and a Diploma de Estudios Hispanicos from la Universidad Complutense in Madrid, Spain.  After teaching assignments in Richmond and Madrid, Emily worked in Latin American banking and technology marketing and sales. Emily returned to teaching in 2009 and since then has taught enrichment classes at Stoddert Elementary School, Jonah’s Treehouse, and run a successful Spanish tutoring business. Emily lives in Washington DC with her family and divides her free time between her favorite spots in Valencia, Spain and Monhegan, Maine.

Additional Instructors

Students engage in a variety of classes within walking distance of the school.   Currently students in Bethesda are enrolled in Spanish and Mandarin classes at the International School of Languages , Cross training at Next Phase, Yoga at Pure Om Hotyoga Studio, and kickboxing at Bethesda Boxing Kickboxing Academy.