TRINITY CHRISTIAN Upper School
Trinity Christian School uses the classical teaching model. Student learning follows three stages, called trivium, based on the development of the mind as students grow.
CLASSICAL TRIVIUM MODEL
The Logic Stage
The Logic Stage is the second stage of the trivium and takes place during grades 7th-9th. In this integral piece of the learning puzzle, students acquire the skills to articulate logical thoughts and create logical arguments for what they believe.
As we like to say-- At Trinity, students are not taught merely what to think, but how to think.
The Rhetoric Stage
The Rhetoric Stage is the third stage of the trivium and takes place during grades 10th-12th. This capstone stage begins to shape a student's life to impact the world around them.
Students learn the art of persuading others of truth using language and writing. They often partake in circle discussions called "Socratic Dialogue" and allow others to speak as they listen and vice versa. The Rhetoric Stage instills a basic respect for thought, ideas, and truth as students learn to express their beliefs.
MEET OUR UPPER SCHOOL TEAM
Mrs. ILENE HARRISON
Literature Teacher, Senior Thesis Advisor, Librarian
Ilene earned her BA in English from Northern Arizona University. She and her husband, Richard, have been married for upwards of 47 years, and have two daughters and two grandchildren. She loves spending time with her grandchildren, surrounding herself with books, visiting the mountains, and teaching AP English. She is delighted to be Trinity’s first librarian.
Mr. GREG LANE
Senior Thesis Advisor, History, & Literature Teacher
Greg was a teacher/administrator in Christian Schools for 10 years prior to a 27 year career in the construction industry. During that time Greg felt that someday God would call him back to Christian School teaching. The events of the recent past made God’s timing for that return clear. Greg feels privileged to be a part of the Trinity staff and looks forward to working with students and parents to prepare the next generation of God-honoring leaders. Greg and his beautiful wife, Gail, have four adult children and 23 grandchildren, school age to adult.
Mrs. KELLY ORR
Upper School Dean of Student Life and Bible Teacher
Kelly is originally from New Jersey, but comes to Trinity by way of North Carolina. She received her Bachelor of Science in Sociology with a minor in Social Science from Wingate University. After that, she received her Master of Arts in Christian Counseling at Southeastern Baptist Theological Seminary in Wake Forest, NC. Kelly has served in the Summershine campground ministry, middle school girls youth intern, assisted her husband in youth ministry and lead women’s ministries. She has been married to her husband, Chris, for nearly 20 years and they have three children: Madison, Karis and Ethan. Kelly has a heart and passion for missions work and was drawn by the Lord to Arizona because “the fields are white for harvest (John 4:35).” She is excited to serve Trinity as the 7th-12th School Guidance Counselor.
Mr. CHAD ROBERTS
Senior Thesis Advisor, Literature, Logic, & Rhetoric Teacher
Chad Roberts earned his bachelor’s degree in Music Theory and Composition from Biola University, as well as a minor in Biblical Studies. He first joined the faculty of Trinity Christian school in 2007 and has taught many subjects over the years. Chad currently teaches high school Logic, Rhetoric, Literature, and Music Appreciation; and assists the High School Principle as the Upper School Department Head. Chad plays the piano and the guitar; he enjoys home improvement projects and spending time with his wife and sons.
Mr. CHAD SHELABARGER
Math & Science Teacher
Chad is a state certified secondary math teacher who teaches Algebra I, Geometry, Algebra II, Trigonometry, Precalculus and Calculus for Trinity. He also teaches high school Chemistry and Physics. This is his tenth year coaching varsity volleyball for Trinity. He received his Bachelor’s degree in Christian Ministries from Southwestern College (now Arizona Christian University), after completing two years at the University of Arizona. He returned to college to become certified as a high school math teacher through Arizona State University (yes, U of A & ASU!). Chad has taught at Trinity since 2007. He loves to play a plethora of sports, such as basketball, football, volleyball, and softball. He also loves outdoor activities such as camping, water sports, and rock climbing. Spending time with his family, however, trumps the rest. He has been married to his wonderful wife, Melanie, for 21 years. Their two children are students here at Trinity.
Mr. TOM WEST
Literature, History, & Keyboarding Teacher
Mr. West was born in Prescott, a 1990 graduate of Prescott High. From there he went on to get a Bachelor’s degree in Missionary Aviation from Moody Bible Institute. He was married in 1999 to Christi and they have 4 girls ages 17 and younger. Following the Lord’s leading to join His work in Prescott, the West family came to work at Trinity in 2016. Mr. West is honored to serve the students of Trinity, and is looking forward to partnering with parents in helping students grow in awe of God’s work in the world as well as grow in their relationship with Christ.
Mrs. MOIRA JACOBSON
Moira has been involved with Christian education for almost 40 years as a parent, board member, teacher, or administrator. She also worked for a season at the Association of Christian Schools International in Colorado Springs. Most recently, Moira retired as High School Principal from Trinity Christian School in Lubbock, Texas, and is now really enjoying being back in the classroom with the great students at Trinity Christian School in Prescott. She and her husband have been married for over 40 years and have three children and three grandchildren. They have lived all over the west and love to hike, read, and travel. Moira’s current Bible “life verse” is I Corinthians 13:7, ” Love bears all things, believes all things, hopes all things, endures all things.”
Mr. KYLE MAESTRI
Headmaster, Senior Thesis Advisor,
& UTT Teacher
Mr. Maestri is a passionate follower of Jesus Christ. He grew up in a Christian home where he was taught to ask hard questions which deepened his faith at a young age. He attended Biola University and was part of their first full graduating class of the Torrey Honors Institute, a Christ-centered classical education great books program. While at Biola, he studied Philosophy and Theology and gained a passion for K-12 classical education. In 2003, he was approached to help start a classical Christian school for the Prescott area. He was daunted by the task, but trusted that God was leading and did not want to miss out. He completed his Master’s degree in Educational Leadership at Northern Arizona University in 2009. He loves teaching, spending time with students, being at home with his family, reading, and playing basketball. Along the way, during the beginning of the school, he married his true love, Anni. They now have four beautiful daughters that they are working hard to raise in the truth of God’s Word. Please pray for him and his family as he leads this ministry with the guidance of the School Board, the Word, and the Spirit of God.
Miss ANGELA OVERMYER
Science and Math Teacher
Ms. Angela Overmyer grew up on a farm in rural Indiana. She received a Bachelor of Science from Purdue University in Animal Science. A couple of years later, she went to seminary to get a Master of Arts in Youth and Family Ministry from Grace Theological Seminary. Currently, she enjoys activities outdoors such as mountain biking, softball, disc golf and hiking to name just a few. She feels very privileged to be a part of the Trinity team and the opportunity to teach and invest in the lives of students.
Mrs. SARAH ROBERTS
Spanish, Latin and Math Teacher
Sarah Roberts is a Trinity Christian alumnus. She received her Bachelor’s of Science in Biblical and Educational Studies from Liberty University. She continued her education at Rio Salado College where she studied the Spanish language. Sarah was born and raised in Indiana and moved to Prescott at the age of 14. Sarah enjoys reading, hiking, cooking, and most of all spending time with her wonderful husband and two sons.
Mrs. HOLLY WEISEL
Art & Theatre Teacher
Holly has taught art at Trinity since 2014. She takes great joy in opening the minds of her students to the world of art and developing their abilities to create, enjoy and appreciate art.
Mrs. SUSAN WHITE
Mrs. White has been a teacher for over 40 years—beginning with public school math, next home-schooling her daughters and teaching classes for home-schoolers and home-school moms, and then teaching in Christian schools. She has been at Trinity since 2004, where she has taught a variety of classes to students ranging from 4th-11th grade. She is now teaching just Junior High Latin—her favorite subject to teach and her favorite grade-level to teach.
Mr. KEN JIMISON
Upper School Principal, Senior Thesis Advisor and Bible Teacher
Ken Jimison joined the Trinity faculty in 2008 after leaving Liberty Christian School in Anderson, Indiana, where he served as both a teacher and a coach. Mr. Jimison graduated from LIFE Pacific Bible College in San Dimas, California with a degree in both Pastoral Ministries and Bible. Mr Jimison pastored for over 20 years before joining the Trinity family. At Trinity he has served in various capacities and is currently the Upper School Department Head. Mr. Jimison and his wife of over 30 years have 5 children, 4 of whom have graduated from Trinity.
Mr. CHRIS ORR
Bible, History, Literature and P.E. Teacher
Chris came to follow Christ the summer following his freshman year of high school, and not long afterwards felt God’s calling into full time Christian ministry. He attended Wingate University, a small school in North Carolina, for his undergraduate work and graduated from Southeastern Baptist Theological Seminary with a Masters of Divinity with an emphasis in biblical languages. It was at this time that his best friend, Kelly, became his beloved wife. Since then, they have been blessed with three remarkable children: Madison, Karis and Ethan. After serving twelve years in pastoral ministry, Chris and Kelly felt God’s Spirit leading them to Arizona after a mission trip to Phoenix in the summer of 2011. Following God’s leading, they moved to Prescott in 2013. Chris has served at Trinity since 2014 and continues to be amazed at God’s work among the students at the school.
Mrs. KRISTEN POPHAM
Science and History Teacher
Kristen is a graduate of Georgetown College with a Masters in Education. She is entering her eighth year of teaching and most recently served as the High School Humanities teacher at Portland Christian in Louisville, Kentucky. She and her husband recently followed God's guidance to move their family across the country to be closer to Kristen's family. Kristen's three youngest children will also attend Trinity Christian School this fall. Kristen and her family enjoy gardening, raising animals, and spending time at the lakes. They strive to live their lives according to the verse found in 1 Thessalonians 4:11-12 "And that ye study to be quiet, and to do your own business, and to work with your own hands, as we commanded you; That ye may walk honestly toward them that are without, and that ye may have lack of nothing.
Mr. AARON ROSBERG
Director of Operations and Admissions, Math Teacher and Worship Team Leader
Aaron and his wife, Erin, have lived in the Prescott area for a little over 14 years and are blessed to have the opportunity to raise their kids here. Aaron has a Bachelor’s in Communication from the University of Mary Hardin-Baylor and Masters in Educational Leadership from Grand Canyon University. Aaron has always felt a calling to ministry from the Lord and he is honored to fulfill that calling through the ministry of Trinity Christian School. Aaron and Erin are excited to have both their son and daughter attending Trinity Grammar School. They are honored to be a part of the Trinity family and are excited to see all that God has in store for the students, families, faculty, and staff of Trinity in the years to come.
Mrs. CHRISTI WEST
Born and raised in Arizona, Christi graduated from Prescott High School. She then studied Bible Theology at the Moody Bible Institute in downtown Chicago. Through her service experiences at Moody, Christi soon saw the Lord encouraging her love of students and teaching. After graduation, she came back to Prescott where those desires to teach were again fueled as she worked in the classroom of the Yavapai County Juvenile Detention Center. She returned to school and received a post-bachelor's degree in secondary education emphasis in mathematics. Married to her college sweetheart, and blessed with four special daughters, Christi enjoys living life to the fullest as she embraces the beauty of God's creation.