Colorado High School Charter - Osage Campus

1175 Osage St.

Denver, CO  80204

Tel: 303-892-8475

Fax: 303-362-6994

www.coloradohighschool.com

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Osage Campus Staff

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Clark Callahan 
Executive Director 
720-305-8516
Mr. Callahan has a deep passion to help all young people realize the value, freedom, and the responsibility that comes with education.  Mr. Callahan received his B.S. in Communications and Economics from University of Northern Colorado, an MBA from Fairfield University and an Ed. M in Urban Educational Administration from Columbia. Bringing 12+ years of experience working in education, he has the drive to move CHSC from a Red school in 2013, to an orange in 2014, to a Green school by 2017. When Mr. Callahan is not at school, you will find him enjoying a medium rare cheese burger with sweet potato fries and a soft and chewy chocolate chip cookie with a little vanilla ice cream on top. A dedicated family man, Mr. Callahan values every moment he gets to spend with his loving wife and three beautiful children. Mr. Callahan also enjoys running, skiing, hiking, knitting, sewing, and painting.
Liz Feldhusen
Principal
303-892-8472, x1106

Liz has worked at CHSC since 2011. She earned her Master’s Degree in School Counseling from Northeastern University and completed her license in Administrative Leadership and Policies Studies at CU Denver in 2017.  Liz loves helping to direct policy at school that empowers youth to express themselves in authentic ways and grow academically and personally.  She got her undergraduate degree from Gettysburg College where she also played on the Women’s Soccer Team. In her free time, she enjoys practicing yoga, listening to live music, traveling and spending time with friends, family, and her dog, Lola.

Jason Heberer
Assistant Principal - Curriculum and Instruction
303-892-8475, x1136

Jason has a wonderful wife, Anne, a 3-year old daughter Kennedy, and a 1-year old son, Benjamin.  He loves his family, faith, the outdoors and doughnuts!  He was born in Indiana, Pennsylvania but moved and went to 9 schools before graduating high school. He graduated from IUP with a BA in Religious Studies and moved to Colorado to work as an outdoor educator for Outward Bound.  He also worked as a driver’s instructor before earning his teacher’s license from MSU. Deciding he’d like to affect change beyond the classroom, he earned a principal’s license from UCD in 2016.  His passion is helping young people learn through adversity. 

Sarah Marin
Business Manager
303-892-8475, x1175

Sarah has been working at CHSC since 2006.  Sarah is a CPA with an accounting degree from the University of Denver and an MBA from the University of Michigan.  Originally from Puerto Rico, Sarah grew up in Wisconsin and Missouri before coming to Denver for college.  Sarah enjoys traveling, hiking, rafting, skiing and spending time with her family and friends.  She is working on her goal of visiting all 50 states, with two to go! 

Fred Lewis 
Dean of Students
720-989-6251

Dean Lewis received his Master’s Degree in Sports Administration at Kent State University.  He began working with students about 10 years ago. He attributes his accomplishments and success to the many people that saw something in him that he didn’t see.  They supported him wanting more out of life than what he had in his current situation. As such, he hopes to pay it forward by establishing a career helping students who are capable of being successful but need the support and push.  When Dean Lewis is not working, you will find him playing basketball, weightlifting and hip hop dancing.   He enjoys sitting at aquariums and watching fish swim freely. He lives by the saying, “I consider my past perfect, because everything I have been through has made me who I am today!”

Caitlyn Green
Guidance Counselor

303-892-8475, x1108

Originally from New York, Caitlyn is a 1st generation graduate of Providence College in Rhode Island where she studied Social Science and Spanish. Upon graduating she took an entry level position in television and spent 8 years working as an ad executive with the NY Mets and Yankees, SpongeBob and the cast of Jersey Shore. A later-in-life applicant to Teach For America, she came to Denver to teach HS Social Studies in 2015 and never looked back. Ms. Green is passionate about learning and supporting students in accessing opportunities to to be successful in achieving their unique goals and ambitions. When she's not teaching or coaching she loves to read, spend time with her Green girl family and friends, explore nature and make people laugh. She feels extremely grateful to have found her joy working with students and families in education and is so happy to be part of the CHSC team.

Rigo Tostado
Concurrent Enrollment Counselor

Rigo comes to Colorado High School Charter after spending nearly 10 years as a Program Director for the “I Have a Dream” Foundation. He is excited by the opportunity to keep working with youth in Denver and supporting them as they discover their own paths towards successful careers.  Rigo is a graduate of the University of Redlands where he earned a degree in Spanish and in Race and Ethnic Studies. Originally from San Diego, Rigo grew up just north of Denver in Longmont and has been living in Denver since he graduated from college. Rigo enjoys traveling, trying new foods in new places and meeting new people. He is also a big sports fan, especially baseball and soccer. 

Marius Finch
Student Engagement Counselor

303-892-8475, x1132

Marius Finch is a Denver native. He attended Manual High School and then the University of Colorado-Boulder where he majored in Psychology and minored in Business. He brings over 15 years of direct service experience working with the Youth Opportunity program at Denver Housing Authority. He also spent 10 years working as a Program Director with the Colorado I Have a Dream Foundation. He most recently served as a Counselor at New America School, working with youth to help them attain personal success, which has always been a passion of his. When he isn't working he enjoys spending time with his three children Sebastian, Vivian, and Marius Jr. (MJ).

Eldijana Bjelcic
ELD Coordinator
Eldijana was born and raised in Bosnia and Herzegovina and came to the United States as a war refugee in 1996. In 2011 Eldijana graduated from University of Denver in 2011 with a BA in Communication and Leadership.  She recently earned her Masters degree from the University of Colorado in Curriculum Development and Critical Pedagogy.  When not teaching, Eldijana enjoys painting, cooking and music. Her favorite book is The Little Prince by Antoine De Saint-Exupery and she loves elephants!  Eldijana is committed to bring positive changes to education and to the children she teaches.
Sandy Vasquez
Office Manager

Miss Sandy was born in El Paso, Texas; Texas born Colorado raised! Her family moved to Denver when she was 8 years old because there were not enough good job opportunities for them in Texas. Miss Sandy graduated from Skyview High School in Thornton, CO.  Miss Sandy is fluent in Spanish so our Spanish speaking families and guests can count on an additional support in our office. She is a dedicated scholar support system and is always looking for ways to improve school culture both among staff and students and, of course, our Colorado High families! She is ecstatic to bring her enthusiasm to this team!

Laura Pritchard
Special Education Coordinator

Ms. Pritchard is new to high schools and to alternative charter schools. Before joining CHSC, she worked for many years in elementary and middle schools with a range of of students, including those with severe needs, mild/moderate needs and without disabilities but at risk for falling behind.  She has been married to her husband, Bobby, for almost 22 years and has three daughters.  In her free time, she loves to spend time with her family camping, hiking, biking, boating, stand up paddling and kayaking.  Ms. Pritchard grew up in Texas. She earned a BS in Kinesiology from St. Edward’s University in Austin. After a few years in the medical field, she obtained her teaching certification. She's never looked back and loves teaching!

Stefan Brown
Foundations of Success Teacher

Originally from Denver, Stefan spent most of his youth in east Denver, in the City Park neighborhood. While perusing his Bachelor of Science at Metro State University of Denver, Stefan discovered a passion for education and felt a need to give back to the communities that inspired him. Stefan is an avid sports fan, and a big time homer! (Broncos, Nuggets, Rockies, etc...). In his spare time Stefan enjoys playing sports, time with friends, live music, sneakers, and parks with his dog, George!  

Jay Fuhrman
Language Arts Teacher

Jay Fuhrman teaches 11th and 12th grade English at Colorado High School. Prior to joining CHSC, he taught English at the Rumsey Hall School in Connecticut where he also coached cross country, ski racing, and tennis. Jay has a BA in Philosophy from St. Lawrence University and is currently pursuing his MA in English at Middlebury College. Jay is an avid cyclist and has led multiple long distance bike trips around the country in the summers during and after college. His other interests include skiing, fly fishing, reading, spending time with his dog, and playing the banjo.

John Garrison
Math Teacher

Mr. Garrison attended Metro State University of Denver. Majoring in Mathematics with a Minor in Secondary Education. He did his student teaching at CHSC and ended up replacing the teacher who mentored him in the student teaching program. An outdoor enthusiast, Mr. Garrison enjoys snowboarding, golf, basketball, camping, hiking and fly fishing –especially when it’s with his wife, Claire, and loyal dog, Stella.  Mr. Garrison hopes to build mathematics skills in all his students to be better problem solvers. 

Gabriel Neely 
Social Studies Teacher
11th & 12th Grade Team Lead

Mr. Neely is fortunate to have had many dynamic teachers in his life and credits this as a main reason for working in education. He also loves to learn and hopes to empower his students to think critically about the world. Mr. Neely has over ten years of teaching experience at both the collegiate and secondary level, and he joined CHSC in 2015. He has a BS in Geography and an MA in Education from the University of Wisconsin-La Crosse and originally hails from Wisconsin.  Mr. Neely loves the American West and moved to Colorado in 2014.  He travels as much as he can and enjoys the mountains for skiing, rock climbing, and backpacking. He also enjoys sports, film, and literature, and dabbles creatively as a guitar player, screenwriter, and cook.

Nate Orr
Transportation and Attendance Specialist

Mr. Nate was born and raised in Detroit, Michigan to the most incredible parents.  His love for children is why he works in schools. 

Kimberly Romanoff
Math Teacher

Ms. Kim is from the small town of Durham, Connecticut. She earned a BA in Neuroscience and Behavior from Vassar College in Poughkeepsie, NY and hopes to be a doctor one day. At Vassar, Ms. Kim played on the Varsity Women’s Basketball team and researched the physiological and behavioral effects of traumatic brain injury.  She also worked at The Listening Center where she supported students dealing with mental health and general life issues. Prior to teaching, Ms. Kim worked as a Medical Assistant and a Zip Line Tour Guide. Ms. Kim is a Teach For America Corps Member and thrilled to be a part of the CHSC family! In her free time she enjoys running, lifting, cooking, hanging with friends, and driving around listening to good music!

Shalom Sanchez
Special Education Teacher

Shalom Sanchez is excited to be part of the CHSC team.  She grew up in New Mexico and is a proud aunty of 22 going on 23 nieces and nephews.  She has taught in Kansas, New Mexico, Californiaand now Colorado. While in California she started mentoring students in Los Angeles and training them to run marathons and has been addicted to running ever since.  She loves the theatre, hiking, snowboarding or really anything outdoors and has climbed the highest peak in the continental United States.

Jonathon Speese
Language Arts Teacher

Jonathon Speese is originally from Midland, Michigan. After attending The University of Michigan, he moved to Boulder to attend graduate school, where he fell in love with teaching. After school, Mr. Speese began working as an elementary math instructor at Centennial Elementary in Denver, but he's excited to be back in his favorite subject. In his free time, Mr. Speese enjoys golf, cooking, and--of course--reading

Stephanie Whitmer
Math Teacher

Stefanie was born and raised in Bellevue, Washington, about 15 minutes outside of Seattle. She left the rain for sunshine and moved to California for school, where she studied Accounting and Information Systems at Santa Clara University. Stefanie worked in tech in San Francisco for a few years before deciding to pursue her passion for teaching and move to Colorado! In her free time, Stefanie enjoys listening to and playing music, hiking, camping, exploring Denver’s restaurants and spending time with friends and family. She is very excited to be in Colorado and to be part of the CHSC family!

River Martone
Student Advocate

River joins Colorado High School after spending many years in business and entrepreneurial endeavors. Their desire to give back and work in advocacy with students and families prompted their return to school. River is working towards a Master’s in Counseling and Psychology from the University of Colorado - Denver. They are thrilled to be a part of the team at Colorado High School Charter. 

Amairani Zuniga-Torres
Student Advocate
303-434-1946

Amairani is a Denver native. She was the first one in her family to finish her education. She recently graduated with a bachelors degree in Criminal Justice and a minor in Human Services from Metropolitan State University. Amairani understands the importance, the adversities, and the opportunities that a higher education brings, first hand. This is why she has a passion to help students succeed. She believes that through dedication and persistence, youth are closer in reaching their dreams. During her free time, Amairani enjoys spending time with family and loves to craft.