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Our Team

Andy Johnson
Executive Director

Andy started at Sage in the summer of 2020 after having been a teacher, Middle/High School Director, Boarding Program Director and wilderness trip leader at Riverstone International School. Previous to working in schools, Andy was a soldier and officer in the United States Army for nearly 24 years. In his free time he likes to read spy novels; run, hike, cross country ski, backpack in the mountains and travel to far off places with his wife, Evelyn. Both of Andy and Evelyn’s children are graduates of IB schools and earned the full DP diploma.

Emily Downey
Director of Finance & Operations

Emily joined Sage in 2014 as a parent of 3 boys, each of who have graduated with the full DP diploma. She enjoyed volunteering in a variety of ways at both of our schools, including as a member of the School Board, and in 2021 became the network’s CFO/COO. Emily is an experienced financial and operational leader as a CPA with over 20 years in the private sector with responsibilities spanning budgeting, forecasting, financial and operational goal setting, personnel management, market strategy, business consulting, corporate taxation and auditing. Emily loves exploring the outdoors with her family and dogs, traveling the world and tucking up with a good book.

Christine McMillen
Special Education Director & Federal Programs Manager

Christine moved to Boise in 1998 and worked as a special education teacher in West Ada and then most recently as principal of Canyon Springs High School in Caldwell. She is also the proud mother of three grown daughters and two stepsons and enjoys spending as much time as possible visiting them in Colorado and Montana. She is passionate about student success and learning and looks forward to working with the great team at Sage.

Bob Brixey
Network Facilities Director

Bob is an Idaho native that grew up in Parma. Bob started working for Sage in the summer of 2016. Prior to that, for twenty years, he was the Facilities Manager for a large church in Indiana. Bob served as a youth pastor in Colorado for five years while he attended Denver Baptist Bible College. He has three children and five grandchildren. Bob enjoys camping with his wife Gayle, entertaining his grandchildren, hiking, driving his hot rod, and working on his miniature railroad.

Heidi Hagman
Marketing & Communications Director

Heidi started at Sage in Boise as a kindergarten parent in 2010 and enjoyed time volunteering while having her own photography business. She officially joined the team in 2019 working at the front desk, and now enjoys using her photography skills and previous years of experience working in IT to market to our community and communicate with families about our wonderful schools! She enjoys traveling and taking outdoor adventures with her husband Mike and their two teenagers.

Lisa Lechner
Network Business Manager/ISEE Coordinator

Arron Walton
Enrichment Director

Arron started at Sage Boise as a parent when the school opened in 2010, and started working at Sage in 2014 as the ESage Director. She is now also Enrichment Director and oversees extracurricular programs at both Boise and Middleton campuses. She previously worked at the YMCA for 13 years in the Child Development Branch in a variety of roles working with infants through school age children. In her spare time, Arron enjoys spending time with her family and friends, hiking, camping, kayaking and gardening.

Dani Zwolfer
IB/Curriculum/Assessment Director

Dani started at Sage in Boise when we opened our doors in 2010. She has held a variety of roles at Sage including elementary teacher, PYP Coordinator, and PYP Director. Dani is also an IB Workshop Leader and has enjoyed supporting colleagues at other educational institutions to develop their understanding of the IB. Before her career in education, Dani spent 19 years at an international market research company as a data analyst. When not on campus, she enjoys spending time with her husband exploring all the corners of Idaho and beyond or hanging out at a local coffee shop playing a board game with family.

Janna Brown
Multilingual Learner Coordinator

Janna started her career in education in 2013 in Jakarta, Indonesia at an IB school as a Kindergarten teacher before moving to Boise and starting at Sage in 2019.  Besides teaching Kindergarten, she’s also been a first-grade teacher and an EL tutor.  After getting her Masters’s degree in English Language Learners in 2021, she became the network Multilingual Learner Coordinator in the fall of 2022.  In her spare time, she loves to read, travel, garden and explore the great outdoors with her dog Jubilee.

Terra Falconer
Network School Psychologist

Terra started as a Kindergarten parent at Sage in 2019. At the same time, she went back to school to become a school psychologist. While in graduate school, she completed many of her practicum and internship hours at Sage and just loved working with the teams. In 2022, she began working full-time for the Sage Network of Schools. Prior to school psychology, Terra worked in animal behavior, environmental education and volunteer management.  In her spare time, she enjoys being crafty with her daughters, spending time with her bunnies, and exploring the outdoors. 

Grimaldo, K

Kriss Grimaldo
Technology Support Specialist

Valerie Roberts
Human Resouces Coordinator

Johnny Watkins
Technology Manager

Rachel Wilson
Human Resources Specialist


Mia Russell
ESage Network Coordinator

Darci School picture

Darci Stelzner
Forge International Head of School

Darci began her teaching career in 2002 and transferred to the Sage Network in 2014 as a middle school PE/Health/Fitness and science teacher. She helped open Sage Middleton in 2019, eventually becoming Head of School in 2021. In her spare time, she enjoys watching her son play hockey, skiing, and hiking. She has a small flower farm and grows, designs, and creates arrangements for weddings.


Austin Ambrose
PYP Director

Austin began teaching in 2017 through Teach For America and began his work at the Sage Network in 2021 as Sage Middleton’s Dean of Students. Prior to joining Sage he was an elementary school teacher. In Austin’s spare time he enjoys exercising, reading a book, or playing the newest Pokemon game.


Jasmine Stanciu
MYP Coordinator

Nora-Strauch (1)

Nora Strauch
PYP Coordinator

Amanda Christensen
Administrative Assistant

Arin Jeffs
Registrar & Bookkeeper

Cherie Hewitt
Kitchen Manager

Gina Fairchild
Food Service Manager

Jessica Humphries
Front Desk Reception

Joy Kaplan-Rood

Lorinda Blew

Wendy Ahyou
Facilities Manager

Kate Hunter
PYP (K-5) Director

Kate’s teaching career began in 2003 in Barcelona Spain, where she instructed all levels of English as a new language. Kate has worked in a wide variety of schools, including private, magnet, and traditional public schools, serving as a teacher, IB Coordinator, district-level program administrator, curriculum and instructional specialist, and assistant principal. This is her first year on the Sage team, serving as the Elementary Director. When not at a Sage you can find Kate with her family, ideally enjoying all that the Idaho outdoors has to offer.

Zach Parker
Middle School (6-8) Director

Zach began teaching secondary English at Caldwell High in 2005. He eventually moved to a small charter school in Nampa where he was the English and Social Studies department for the entire high school. Zach happily ended up at Sage in 2012 as the school aligned with his educational and life philosophy. He taught various levels of English and Social Studies at the secondary level while slowly taking on different leadership roles. In 2016 Zach made the shift to a full time Director of Middle School. When not roaming the halls of Sage, Zach enjoys having a book in one hand and a fly-rod or golf club in the other hand. He also enjoys the finer outdoor experiences of Idaho with his family of four.

Brandy Burkett
High School (9-12) Director

Brandy has been working in the field of education since 2013. She began as an English teacher in the Nampa school district and was offered the amazing opportunity to teach at Sage for the 2017-2018 school year. Throughout her years at Sage, Brandy has served as an English teacher, Personal and Professional Skills teacher, College and Career advisor, and she has spent the last 3 school years serving as a Director in the high school.

Danny Solomon
Dean and Campus Operations Coordinator

Danny started his career in education in West Ada in 2010. He has worked as a paraprofessional, teacher, and administrator across multiple grade-levels and contents. His primary teaching assignments were in English Language Arts, before moving on to his time as an assistant principal. This is the first year Danny has served as dean and campus operations for Sage International. Danny’s values match Sage’s focus on including all students in a demanding education that develops them as local and global citizens. When not at Sage, a satellite communicator may ping his location with family, friends, or somewhere on a mountain, assuming he didn’t forget the device.


Katie Ashby

Robyn Olnes
K-5 (Everest) Front Desk


Sarah Brown
6-10 (Everest) Front Desk

Jo Lynn Somero
11-12 (Summit) Front Desk


Taylor Steele
K-7 Counselor

Britanny Meduna
8-12 Counselor


Danielle Konkol
Library Specialist

Thomas Divis
Facilities Manager