Field Education

Out in Nature, into Science

Faculty & Staff

  • Joe Petrick

    Vice President of Field Education
    M.Ed., University of Washington
    Certificate in Education, Environment and Community, Islandwood Graduate Program
    B.A., History and a Virginia Professional Teaching Certificate, 
    University of Mary Washington
                     joe.petrick@tetonscience.org                       

    Joe leads a team of passionate educators who customize field science adventures for groups of all ages. He joined the Teton Science Schools family in the spring of 2007. Prior to Teton Science Schools, Joe worked as an administrator, classroom teacher and outdoor educator in Washington, California, Virginia, Maryland and South Africa. Joe spends his free time exploring the Greater Yellowstone Ecosystem and traveling to other inspiring locations with his wife and two girls.

  • Minnie Galleher

    Director of Field Education - Operations
    B.S. Biology, Ecological Emphasis, The University of Findlay
    Graduate Program of Teton Science Schools
    melinda.galleher@tetonscience.org

    Minnie grew up in Ohio exploring in the forests, fishing and participating in 4-H projects. Upon graduating from college, knew that she wanted to pursue a career in environmental education. She spent a couple years working at environmental education centers in Minnesota and Indiana, before coming to the TSS Graduate Program in 2007. Minnie manages operations surrounding programming at the Jackson Campus of Teton Science Schools.

  •   Emily Hager

      Director of Field Education - Staff
      M.S., Natural Science, Environment & Natural Resources, University of Wyoming
      Graduate Program of Teton Science Schools
      B.S., Biology, University of Puget Sound

                    emily.hager@tetonscience.org

    Inspired to connect powerful outdoor experiences with placed-based science teaching and learning, Emily Hager found her way to Teton Science Schools first as a graduate student in 2006, and later as a faculty member in 2011. Prior to joining the faculty team at TSS, Emily pursued personal canoeing expeditions in Northern Canada, and taught in field settings with both TSS and the National Outdoor Leadership School. Emily manages staffing and scheduling within Field Education, and co-coordinates the TSS AmeriCorps Program with Katie Hoskinson.

  • Colby Mitchell

    Director of Field Education - Curriculum, Instruction and Research
    M.Ed. Environmental Education, Western Washington University
    Certificate in Leadership and Non-Profit Administration, North Cascades Institute
    B.S. in Biology with an Environmental Concentration, St. Michael’s College

                       colby.mitchell@tetonscience.org

    Since leaving New England in 2005, Colby's career has focused on the craft of teaching science outside, working with communnities to support youth development, and facilitating organizational learning in non-profits. For six years, Colby worked for Shedd Aquarium in Chicago in a variety of capacities, among them the coordination of community-based science education and mentorship programs for teens. Following a growing interest in non-profit leadership, Colby persued graduate studies in western Washington, a path that would ultimately lead him to a new home in the mountains of western Wyoming.     

  • Tanya Anderson

    Field Education Faculty
    M.S. Environmental Science, University of Massachusetts, Boston
    B.A. History, University of Rochester

    tanya.anderson@tetonscience.org

    For more than twenty years, Tanya has worked in the fields of experiential and environmental education. She has taught natural history in a variety of environments, guided backpacking, canoeing, skiing, and bicycling trips, taught global education aboard a boat that sailed around the world, studied sea turtles in the Galapagos Islands, led study abroad programs in Latin American and Asia, coordinated a graduate residency program in environmental education at the North Cascades Institute, directed a local nonprofit, and taught at Central Wyoming College. Tanya coordinates Road Scholar programs at Teton Science Schools. 

  • Andres Esparza
    Field Education Faculty
    MEM Integrative Land Management, Western State Colorado University
    BA, Sociology, University of Texas at El Paso
    andres.esparza@tetonscience.org

    Andres Esparza has worked in the field of environmental education for the better part of a decade on public lands ranging from the desert Southwest to the High Sierra of California to his current position at Teton Science Schools in the Greater Yellowstone Ecosystem. Through his time in a variety of roles, Andres has always strived for utilizing the field of environmental education as a tool for engaging diverse and often underprepresented population with their public lands. He currently manages Summer Day Programming at TSS. 

  • Christen Girard

    Field Education Faculty
    M.Ed. Environmental Education, Western Washington University
    Certificate in Leadership and Non-Profit Administration, North Cascades Institute
    B.A. Environmental Studies, Natural History Concentration, Lewis and Clark College

    christen.girard@tetonscience.org

    Christen has followed her love for the environment through many western states as a naturalist, trail crew member, field biologist, farmer and teacher, working with people from a multitude of backgrounds and ages along the way. After completing a Masters in Environmental Education, she worked several years as the Program Coordinator for a conservation organization in the North Cascades, leading a wide variety of field-based/residential programs and supporting educator development. Outside of teaching, Christen enjoys writing, trail running, working in the dirt, and exploring wild places with a notebook and pen in hand. Christen manages Murie Ranch Programming at TSS and loves sharing her curiosity for the natural world with others. 

  • Naomi Heindel

    Field Education Faculty
    MESc, Yale School of Forestry and Environmental Studies
    BA, Environmental Earth Science, Dartmouth College

    naomi.heindel@tetonscience.org

    Naomi Heindel has worked as an environmental educator for over a decade. Before coming to Teton Science Schools, she worked at organizations including NatureBridge Yosemite and Chewonki, guided wilderness expeditions on the rivers of northern Canada, the high country of the Sierra Nevada, and the lakes of Maine, and broadened her geology undergraduate experience with a Masters of Environmental Science at the Yale School of Forestry. Naomi now manages adult and family programs, backcountry camping and the Teton Science Schools blog.

  •   Katie Hoskinson

      Field Education Faculty
      B.S. Geology and Government, St. Lawrence University
      katie.hoskinson@tetonscience.org

    Katie grew up in the foothills of the Adirondack Mountains in upstate New York and developed a lifelong passion for engaging others in exploration of the natural world and their communities. Katie is an alumni of the TSS AmeriCorps program and is passionate about service as a tool to connect people with place. Katie manages military family programming and co-coordinates the TSS AmeriCorps Program with Emily Hager, working closely with community partners to expand STEM literacy in the Jackson community. 

  • Dylan Klinesteker
    Snowcoach Lead Guide and Field Education Faculty
    B.A. Environment Education:Outdoor Education and Interpretation, Western Washington University
    dylan.klinesteker@tetonscience.org


    Dylan first heard about Teton Science Schools sitting on the side of a trail on a backpacking trip in Grand Teton National Park. Since that day Dylan got a degree in Environmental Education, worked at Mt. St. Helens, Death Valley, Redwoods, and North Cascades National Park, educating visitors and students about the natural world. Happy to be back, Dylan now splits his time working with the Field Education team and the Wildlife Expeditions team driving a Mercedes Sprinter with Mattracks through the Winter wilds of Yellowstone.

  • Greg Ley
    Field Education Faculty
    M.S. Natural Science Education & Environment and Natural Resources, University of Wyoming; B.A. Adventure Education, Fort Lewis College 
    greg.ley@tetonscience.org

    Greg spent his early life in the foothills of the Rockies on the Front Range of Colorado, exploring, getting messy, and developing a relationship with the outdoors on many levels. He has since worked as an educator, guide, facilitator, and naturalist throughout the Rocky Mountain West. He considers himself a lifelong learner in his current position as Doug Walker Challenge Course Manager and coordinator of stewardship programs at TSS, and his favorite pasttime is wandering.

  • Tisa Djahangiri
    Lead Field Instructor
    B.S. Physical Geography, Texas State University - San Marcos
    mahtisa.djahangiri@tetonscience.org

    During her time as an undergraduate, Tisa developed a passion for environmental education through the Outdoor Recreation Program. Tisa has worked to inspire and enthuse others about science and the natural world by guiding outdoor adventure trips in the Texas hill country, coordinating and teaching citizen science programs and increasing scientific literacy across the country. She served as an AmeriCorps intern with Teton Science Schools during the 2015 winter season and has been dedicated to place-based education ever since. 

  • Charlie Grant
    Lead Field Instructor
    B.A. Art and Visual Culture, Bates College
    charlie.grant@tetonscience.org

    Born in Portland, Oregon, Charlie grew up spending much of his time exploring and hiking in the Columbia River Gorge and climbing at Smith Rock. Before coming to TSS, Charlie spent time as a Teaching Assistant at the St. Paul's School in New Hampshire and continued his teaching career as a Program Assistant for Emory University's Tibetan Studies Program in Dharamsala, India. He is excited to be a member of a close-knit community in the Tetons.

  • Maddie Johnson

    Lead Field Instructor
    B.A. Environmental Policy and Human Development, Colby College
    madeleine.johnson@teton.science.org

    Maddie came to TSS in the fall of 2015 to continue her passion for connecting people to the outdoors. She loves being able to motivate her students to engage in meaningful outdoor recreation through both leadership and scientific lenses. She has studied natural resource management in Zanzibar, Tanzania, worked with an urban beekeeping company in Boston, led backpacking and community service trips throughout Iceland and the US Virgin Islands, and is now excited to be regularly exploring the Tetons with students and adults from all over the country. 

  • Kyle Kissock
    Lead Field Instructor
    B.S. Geology; Bucknell University M.S. Earth and Environmental Sciences; University of Iowa
    kyle.kissock@tetonscience.org

    Kyle came to Jackson from Iowa City to follow his passion of connecting people to the outdoors. As a lead field instructor at Teton Science Schools he engages with youth and adult learners to facilitate appreciation for public lands in Wyoming and promote transference of conservation and scientific concepts to student's own backyards. He especially introducing students to the Tetons through the lense of a geoscientist. 

  • Kelsie Leu

    Lead Field Instructor
    B.S. Biology and B.A. Environmental Studies
    kelsie.leu@tetonscience.org

    Kelsie spent her childhood venturing through the forests and mountains around Kalispell, MT where she grew to love the natural world. Before coming to TSS, Kelsie led backpacking and leadership development trips in Montana and throughout Washington working with middle and high school youth. Hoping to combine her love of the outdoors and science, Kelsie then served as an AmeriCorps member at TSS and eventually became an instructor where she now gets to engage with learners of all ages and foster meaningul connections to places all around the world. 

  • Sam Neirman
    Lead Field Instructor
    Graduate Program of Teton Science Schools; B.S. Forestry, University of Vermont
    sam.neirman@tetonscience.org


    Prior to graduating from the Graduate Program at Teton Science Schools, Sam spent three years working as a naturalist and educator at the Vermont Institute of Natural Sciences (VINS), as well as a consulting forester at Full Circle Forestry. It was at VINS where Sam truly discovered his life calling: connecting students with their natural surroundings. He is excited and eager to build relationships and share his knowledge of the outdoors with the amazing students that come to TSS.

  • Kendall Peacock
    Lead Field Instructor
    Graduate Program of Teton Science Schools; B.A. Environment & Natural Resources and International Studies, University of Wyoming
    kendall.peacock@tetonscience.org

    Kendall loves to share the outdoors with people and teach about the natural histroy of the GYE. Over the years she has instructed many conservation projects throughout the state of Wyoming while teaching leadership, camping, and wilderness management. She completed the graduate program at TSS planning curriculum and taking students into the field each season. Throughout her time in field education, Kendall has stayed dedicated to making learning fun and investing in students through place-based education.

  • Amelia Howe
    Field Program Administrator
    B.S. Human Dimensions of Natural Resources, Colorado State University
    amelia.howe@tetonscience.org

    After graduating from Colorado State University, Amelia made the move to Jackson to work as TSS's Field Program Administrator and put her combined passion for people and natural resources to work. She has always hoped to work to encourage and create strong bonds between people and place, and is able to do so through her behind the scenes work aiding in field program coordination and logistics. Amelia enjoys weekends spent climbing, camping, reading under the sun in a hammock, and snowboarding.

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