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High School Faculty

Arts and Humanities

InaIna Jaehnig
Humanities, Arts, Waldorf Teacher Training
Co-founded DWS in August 1974, DWHS in August 1994

As the co-founder of The Denver Waldorf School, Ina has been teaching at DWS for more than thirty years. She earned certification as an arts teacher at the Academy for the Arts in Stuttgart and received her Waldorf Teacher Training at the Munich Waldorf School. In addition to sharing her knowledge with High School students and the DWS faculty, Ina consults for Waldorf schools across the United States and spends her summers training Waldorf teachers.

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Eric Mills

Eric Mills joined the DWS in the Fall of 2018 after having been involved with education in some manner for more than 14 years. He has designed and taught courses for universities in New York, China and Colorado. He’s also taught high school and middle school for the last seven years in Denver, and he has told thousands of terrible jokes along the way. Prior to teaching, Eric was a classically trained pianist, and it is his love of music and art that made him aware of The Denver Waldorf School for his charming son and wonderful daughter. He enjoys strumming chords on the guitar and taking a nightly walk with his children around their neighborhood.

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tom sculpting davidDavid Johnson
Humanities, Drama

After working in professional theater and construction for 30 years, David completed his Waldorf High School Teacher Training in Wilton, New Hampshire. A Waldorf school graduate, David, along with his siblings, is the fourth generation of the Johnson family to become a school teacher. He began teaching at DWS is 2002 and has been building sets and directing plays ever since.

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Kevin Gwinn
High School Chorus Teacher

Kevin began teaching at DWS in 2016, bringing his passion for music, which he loves to share and instill in students of all ages. Along with teaching at The Denver Waldorf School, Kevin teaches at the The Colorado Springs Conservatory while maintaining a private voice studio. As a singer, Kevin regularly appears in the Denver area in operas, musicals and concerts. National highlights include Cosi fan tutte in York, Pennsylvania and Don Giovanni in Yakima, Washington. Local engagements include the role of Parpignol in Colorado Symphony’s production of Puccini’s La Boheme and as Uriel in the Lakewood Chorale’s production of Haydn’s Creation. He has twice been named a finalist in the Denver Lyric Opera Guild’s Competition for Young Singers. When Kevin is not singing or teaching, he enjoys watching Ole Miss sports (Hotty Toddy!) and traveling to warm places.


Sara Fierer
Strings Teacher

Sara has been teaching orchestra students in grades 3-12 since her arrival at DWS is 2000. She loves sharing her joy of music with children, inspiring them to have a great time playing instruments. She maintains a private studio and plays with her string trio as well as with the Boulder Philharmonic. Prior to moving to Colorado, Sara taught as an orchestra director for three years near New York City. Sara earned a Bachelor of Music in cello performance from Oberlin along with a BA from Oberlin in Environmental Studies. Additionally, Sara earned an MA in cello performance and completed coursework in music education from The University of Texas at Austin.

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Mike McHenry
High School Chair, College Advising, History

Mr. McHenry came to DWS is 2002 with extensive experience as a school counselor as well as in marriage and family therapy. He serves in several positions at DWS, including as a teacher, counselor, college advisor, coach and High School Chair.  Mr. McHenry teaches Humanities and Social Science classes to Grades 9 through 12 and coaches Middle School volleyball. He holds an MDiv and a MA in Theology with an emphasis in marriage and family counseling from Fuller Theological Seminary and a BA in Speech Communications from California State University in Fresno.

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Passion: Volleyball, family and reading
Favorite Quote? “The grass is green enough.”
What Other Occupation Would You Like to Try? Professional Athlete

McKenna Day

Mckenna joined DWS in 2016 as our second High School Spanish Teacher and also teaches 6th grade math. Having attended The Denver Waldorf School from pre-K through emckenna-day-headshotighth grade, Mckenna went on to graduate as valedictorian from Smoky Hill High School and later earned a BA in Spanish from the University of Colorado in Denver. She taught at Bruce Randolph Middle School before finding her way back to DWS. Her loves include taekwondo, volleyball and travel – she has studied abroad in the Dominican Republic and has visited Costa Rica multiple times. During the summer of 2016, Mckenna is spent time in Thailand working at the Elephant Refuge and Education Center.

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Kimberly Martin

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clay_5Tom Clark
Practical Arts & Sciences

Tom has been teaching at DWS since 1985. He attended the Los Angeles Art Center College of Design and began working with children at the Parzival Shield Waldorf School’s Summer Camp. He began teaching 3rd Grade at DWS and has since taken two other classes from 1st through 8th Grade. Tom teaches arts and sciences in both our Middle School and High School.

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Science and Mathematics

Caroline Heberton, Ph.D.

Caroline earned a BA in Math from Grinnell College along with a PhD in Applied Math with an emphasis in Computational Math and the mathematics of Science and Engineering from University of Colorado in Denver. Her experience includes teaching at UCD, research work for USGS and programming for United Airlines . She began her work with children as coordinator and counselor for the Parzival Summer Camp from 1990 to 1994. Dr. Heberton joined DWS in 1996.


Alexa Krakauskas, DVM
Life Sciences & Chemistryalexa-cropped

Dr. Kraukauskas came to DWS in 2016 with a strong science and teaching background, having graduated from Cornell University’s College of Veterinary Medicine with a PhD in Veterinary Medicine in 2001. Following graduation, Dr. Krakauskas worked in a veterinary hospital prior to delving into Waldorf education. She launched her teaching career at The Waldorf School of Philadelphia and also taught at Mountain Phoenix Community School in Wheat Ridge. Dr. Krakauskas moved to Colorado from Pennsylvania with her husband and four children in 2015.

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Dan Prendergast
Computer Science

Dan earned a BS in Mechanical Engineering and an MS in engineering from Stanford University. After ten years working as an engineer, Dan became a consultant and trainer in personal computers. He has worked as an independent consultant, providing a broad range of computer support including user training, database development, financial modeling, programming and IT services for businesses throughout the Denver metro area since 1985. Dan brought his expertise to DWS in 2006.

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Mark Shepard

Mark’s education includes an MA in Philosophy from University of Colorado in Boulder, BA in Math, magna cum laude, and Colorado Teacher Certification from University of Colorado in Denver, and a BA in Psychology from University of Central Florida. Mark taught at Kearney Middle School in the Gear Up program, managed the GED/ABE program at Curtis Park Community Center, worked as a Chapter I Math Teacher at Denver Children’s Home and provided tutoring on a wide range of subjects. Mark came to DWS is 2003.

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Connor Gallagher

Joined DWHS – August 2014


Physical Education & Sports

Michael Quinn
Athletic Director, Head Men’s and Women’s Basketball Coach

Michael joined DWS in 2003 after having worked for eight years as a Recreational Instructor in Youth Sports and Arts at Harvard Gulch Recreation Center in Denver where he taught children ranging in age from five to fourteen. He is a Colorado native and graduated from South High School, then attended Metropolitan State College.

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