Ulyana Horodyskyj

Ulyana H.

Broomfield, CO
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Lesson Details


Levels Taught:
Beginner, Intermediate, Advanced

I am a native English speaker and able to help with reading, reading comprehension, writing and grammar.

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Ulyana teaches



Ulyana passed a background check that includes a SSN verification, national criminal record check, and sex offender registry search. Learn More
Ulyana delivers an exceptional lesson experience and ranks in the top 15% of our teachers nationwide.
Teaches students:
Ages 5+

Teaching since:

My name is Ulyana and I'm passionate about teaching and tutoring! I graduated with a B.S. from Rice University (Houston, TX), specializing in earth sciences (geology and chemistry). I did my Masters in planetary geology at Brown University (Providence, RI), and for my PhD, I trekked over 1500 miles in Nepal, studying glacial lake flooding hazards to Sherpa villages, as well as impacts of pollution on pristine high mountains, including Mt. Everest.

For seven years now, I have either tutored or taught, in classrooms and in the field, all age groups, sharing the joy of science, math - and learning in general! When I was in my teens, I participated in many science fairs and symposia at the national and international level. Then I went to college and grad school in science. Pretty much, science has been my life! For any of your science needs, with a special focus on astronomy and geology (earth sciences), I'm here to help. I can assist with physics, biology, chemistry and math (algebra, pre-calc, calculus). Given my experience in public speaking, the Microsoft Office suite (Excel, Powerpoint, Word) and writing, I can assist with that as well!

If you're interested in creative lessons - with a true focus on your learning experience, I'm your tutor! Often times when working out in the field in extreme locations (e.g., Antarctica and Mt. Everest), I have to MacGyver solutions on the fly. I want to teach you how to think. This skill will serve you well, long into the future.

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Apr 2016 - Present
Colorado College

Part-time position, teaching "Introduction to Global Climate Change" class at the undergraduate level.

Jan 2016 - Present
Science in the Wild

Science in the Wild is an adventure travel company that leads immersive and educational science expeditions around the world, teaching you about science and how to DO science.

We show you everything you need to know to collect, analyze, and interpret scientific data - the art of science storytelling.

For upcoming trips, please see: http://scienceinthewild.com

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Jun 2017 - Jul 2017
National Geographic

Expedition leader and teacher for a National Geographic geology and climate "on assignment" high school program in Iceland.

Postdoc (research scientist)
Sep 2015 - Sep 2016
National Snow and Ice Data Center

During this one-year post-doc, I validated satellite-derived albedo (reflectivity) measurements of snow and ice with on-the-ground fieldwork in the Arctic and Himalaya.

I also quantified the amount of black carbon and dust concentrations in natural snowpacks, spanning from Alaska, to Colorado, to the Canadian Arctic, to the Himalaya. The presence of these contaminants greatly increases melting of snow and ice.

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Jun 2014 - Jun 2015
Girls on Ice

I was an instructor for a wilderness science education program for high school girls on Gulkana glacier, Alaska in 2015; and on Mt. Baker, Washington in 2014.


PhD - geological sciences
Sep 2010 - May 2015
University of Colorado Boulder
Master of Science - planetary geology
Sep 2007 - May 2010
Brown University
Bachelor of Science - earth sciences
Sep 2003 - May 2007
Rice University


Fluent / Native Proficiency
Fluent / Native Proficiency


Wilderness First Responder
Nov 2016
NOLS (National Outdoor Leadership School)

80+ hours of medical training


Jun 2017
The Explorers Club
Waitt Foundation grantee
Apr 2016
National Geographic
Fulbright fellow
Aug 2013
The Fulbright Program
Climber-scientist grantee
Sep 2012
United States Agency for International Development (USAID)


National Honors Society
Sep 2002

The National Honor Society (NHS) is the nation's premier organization established to recognize outstanding high school students. More than just an honor roll, NHS serves to honor those students who have demonstrated excellence in the areas of scholarship, leadership, service, and character. These characteristics have been associated with membership in the organization since its beginning in 1921.

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Photos & Videos

Skyping with a classroom and teaching the students all about how fun science can be!

Teaching a local Sherpa in Nepal how to collect snow samples for scientific research purposes. This was during my Fulbright year in 2013/14.

Studying a geological outcropping in the Andes (South America).

Working in the Himalaya - this is my office!

Working for Girls on Ice, a program meant to teach underprivileged girls how to climb mountains as well as learn science and math.

Using a big boulder as a "chalkboard" for teaching in the field. :)


8 Reviews

Write a Review
Berret Jun 25, 2019
Writing · Online

Ulyana is very nice, and my son really enjoys the lesson.

Alan Y. Jun 18, 2019
Writing · Online

Perfect lesson! Dr. Ulyana is very nice, patient, and very professional.

Berret Jun 18, 2019
Writing · Online

Tom C. Jun 11, 2019
Study Skills · Online

Ulyana is a very special young woman. In searching for an online teacher for my Daughter,I felt that "Uly" would be the correct choice. My Daughter has different abilities and therefore different needs as well as understanding. Ulyana has stayed dedicated over the months and my Daughter continues to grow. Uly's skill and understanding levels are excellent, but her strength of character in perseverance and ingenuity are directed toward securing meaningful success. Growth continues to be achieved in small steps with every lesson. I am forever grateful to and for Ulyana. My Daughter is a stronger more capable individual because of Ulyana. GRATEFUL,Tom C.

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Tom C. Nov 6, 2018
Study Skills · Online

Ulyana is a most competent ,dedicated teacher who has helped my special needs daughter progress with navigating technology. The situation has been most challenging, but Ulyana has continued with understanding and poise. She has reached out to me immediately to clarify the progress and circumstance which has allowed me to realize why I chose her initially. Her positive demeanor, understanding and willingness to accept a most challenging situation stands out uniquely. I support her in her endeavors completely. Sincerely,Tom

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Jenelle B. Jun 21, 2018
Science · Online

shes really nice. i hope i get to see her again, shes a great teacher.
-jenelles daughter

Gabriel Apr 16, 2018
Writing · Online

She was very knowledgeable and presented the information clearly. My writing greatly improved.

Jennifer G. Oct 17, 2017
ESL · In home

Great instructor!! Very nice! Helped in every way possible!

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