Secondary Staff


Mr. Bob DeRuiter
Secondary Principal

Education B.A., Business Education: Trinity Christian College Prior to coming to ECA in 2000, Mr. DeRuiter taught business classes at Chicago Christian High School.  Mr. DeRuiter serves as ECA Secondary Principal, Academic Advisor, Modern History/Literature 9 teacher, and ECA Baseball Coach. “My greatest joy is witnessing God’s handiwork in each student and watching them mature in their attitudes and beliefs.”

Rev. Matt Holst
Director of Spiritual Life and Bible Faculty

Education B.A., Sec. Ed.: Washington Baptist College M.A., Hist. Theology: Westminster Theological Seminary M.Div.: New Geneva Theological Seminary Rev. Holst serves as Bible Instructor and Director of Spiritual Life at ECA, as well as Pastor at High Plains Fellowship (PCA) in Falcon, Colorado.  “My goal for all of my students is that they will leave ECA with a true understanding of what it means to be saved by grace apart from works and will in turn live a life of gratitude for what God has done for them.”

Mrs. Kerry Singleton
Junior High Principal

Education B.A., Mathematics and English: Covenant College Prior to ECA, Mrs. Singleton taught at a Christian school in Atlanta, tutored math and SAT preparation for 15 years, and taught math at a homeschool co-op.  Mrs. Singleton serves as Junior High Principal in addition to teaching Algebra I, Logic 8, World Literature, and Medieval History/Literature/Bible 8.  “I love sharing my passion for God and my subjects with my students, and it is a joy to point them to their true identity in Christ and to the one, true God, the source of all truth.  I start my students off with Colossians 1:15-17, because it points directly to the fact that all things have been created by God and for His glory, and that is the beginning, middle, and end for all subjects.”

Mr. Don Steiner
Vice Principal and Athletic Director

Education B.S. Kinesiology: California Polytechnic State University, San Luis Obispo M.A., Sports Administration: University of Northern Colorado Certified Athletic Administrator (CAA):  National Interscholastic Athletic Administrators Association Before joining ECA in 2004, Mr. Steiner worked at Lockheed Martin in the Learning & Development Department and coached football at CSCS.  Mr. Steiner currently serves as ECA Vice Principal, Athletic Director, and Physical Education Instructor. He has been the Black Forest League President and a member of the Colorado High School Activities Association (CHSAA) since 2009, served on numerous committees, and has recently been nominated for the CHSAA Board of Directors.  “I desire that our students see the big picture and understand that their actions have consequences, both good and bad; and that if they choose to be godly in those actions, then those consequences will be blessed in our current life as well as our life to come.”


Mrs. Marie Burley
French & Literature Instructor

Education BA, Ballet: University of Utah M.A., Production Management: University of Utah Prior to teaching French I and II, American Literature, British Literature, AP Language/Composition, and AP Literature/ Composition at ECA, Mrs. Burley taught at the University of Utah, substitute taught, and traveled the world.  “The goal of Christian education is to glorify God by equipping students with necessary skills within the framework of Christianity. It is my prayer that our ECA students will embark on a lifelong love of learning about God and His creation.”

Mrs. Michelle Hamilton
Junior High and High School Science Instructor

Education B.S., Medical Technology: Adams State University, Penrose School of Medical Technology. Mrs. Hamilton teaches Earth Science 8 and Chemistry at ECA; and prior to joining ECA, she worked in health care for 25 years, 17 of which were in a hospital lab.  “My hope is that students will leave my classes capable of speaking intelligently to a lost and dying world, convincing them that we are not here by accident but are thoughtfully and orderly created by our wonderful Savior Jesus Christ.”

Mr. Brent Holtcamp
Secondary Art Instructor

Education B.A., K-12 Education: University of Southern Colorado Mr. Holtcamp has been involved in the ministry of ECA since 1978 and teaches Junior High Art, Art I, II, III, and Studio Art; and he is still excited to see that the potential for glorifying God through the students and ECA is limitless.  “I hope to open the students’ eyes to this great and exciting world by looking, seeing, and doing with a positive curiosity about the wonders God our Creator has set before us.”

Mrs. Leigh Jones
Junior High Mathematics, Literature, History, and Bible Instructor

Education B.A., Elementary Education: Calvin College. Mrs. Jones attended Christian school from Kindergarten through college and has taught in Christian schools in Grand Rapids, Michigan, and Fort Collins, CO, and she wholeheartedly values the importance of Christian education and the impact it can have on the children in our society.  After working in the ECA Pre-Kindergarten program, Mrs. Jones now teaches Language Arts 7, General Math, Pre-Algebra, and Ancient History/Bible 7.  “I desire to be a teacher who can open up each child’s heart to learning and to loving the Lord so that they may continue to grow day by day.”

Miss Katie Keith
Secondary Computer Instructor

Education B.A., Communications: Grand Canyon University. Prior to teaching at ECA, Miss Keith worked as a marketing manager and substitute teacher. Miss Keith graduated from Evangelical Christian Academy, attending from Pre-K through 12th grade. Miss Keith teaches Junior High Computers, Photoshop, InDesign, Yearbook, and Composition 9. “The Westminster Shorter Catechism declares that the chief end of man, which  I learned as a student at ECA, is  ‘to glorify God and enjoy Him forever.’ My ambition is to teach with this in mind, diving into the fascinating world of technology with a Christian perspective and  inspiring students to create God-honoring content.”

Mrs. Karen Leidecker
Secondary Science Instructor

Education B.A. summa cum laude, K-8 Education with a Psychology and Bible minor: Tennessee Temple University After teaching elementary through high school in several Christian schools in various states, Mrs. Leidecker joined the faculty at ECA in 1995 and teaches Life Science 7, Physical Science, Biology, Honors Anatomy & Physiology, and Business Math.  “It is a great joy to be able to minister Christ’s love to my students through the subjects of science and math.”

Mr. Will Pinson
Secondary Math and Physics Instructor

Education B.S. Physics: Geneva College Mr. Pinson teaches Geometry, Algebra II, Honors Pre-Calculus, AP Calculus, and Honors Physics. Before joining ECA he built decks for about 9 years. Mr. Pinson loves math and science, and considers it is a joy to explore these fields with students, seeking to unfold a little bit of the mystery and wonder as well as the orderliness of God’s creation. “The heavens proclaim the glory of God. The skies display his craftsmanship.” Psalm 19:1

Mrs. Cristy Ross
Spanish Instructor

Education B.A. Theater: University of Colorado-Boulder. Mrs. Ross previously worked at our Elementary campus and has joined our Secondary faculty to teach Spanish I, II, and III. “I had my life wonderfully changed by God in college, and He led me to Spain as a missionary. I am so thankful for the opportunity to teach my students the language God has used in my life, and I hope it will be a blessing to them as well!”

Mrs. Beth Saks
Junior High Latin Instructor

Education B.A., Elementary Education: University of South Carolina; Continuing Education: Multnomah Bible College. Mrs. Saks has invested over 30 years in the education and discipleship of our Covenant children.  Believing language is given to us alone in the creation to reflect God’s image, she is committed to teaching our students to steward this gift well.  She is privileged to introduce our students to Latin, a language which provides insight into the world of Jesus’s day, context for our own nation’s history, and perspective for the study of western civilization.  “I believe there are few means more beneficial to the training of young minds than the study of Latin; the resulting virtues of discipline and understanding are great gifts to be pursued. ‘…diliges Dominum Deum tuum…in tota mente tua.’ Matthew 22:37, Latin Vulgate [‘Thou shalt love the Lord thy God…with thy whole mind.’].”

Ms. Sandra Vollbracht
Secondary History Instructor

Education B.A., History: Covenant College/University of Colorado Before coming to ECA in 1991, Ms. Vollbracht taught at and administered Covenant Christian School in Los Alamos, New Mexico; and she currently teaches World History, U.S. History, Civics, AP U.S. History, and Honors World Political Systems. “Scripture is the guide for all we study and necessary for understanding history and its importance. What a privilege it is to instruct young people in a biblical understanding of history. I believe God has put me here to do just that.”