About Our StaffLearn more about the administrative, teaching, and support staff at OAKS.
Kathy Preston grew up on a farm west of Montgomery, Alabama. There she learned to love animals and to work with and for her family. She is married to Harold Preston, and has three grown children: Dustin, Morgan, and Luke.
Almost 20 years ago she realized that she wanted to “make the world a better place.” So after much prayer and soul searching, she resigned from government work to pursue her teaching career. She has never regretted her decision. After 11 years teaching in Marietta, Georgia, she landed a job here at OAKS and the move has been a blessing for her and her family.
1st & 2nd Grade Teacher
Mrs. Mendoza graduated from Tennessee Tech University with her bachelor’s in elementary education. After teaching for a few years, she decided to further her education and get her master’s degree in reading and literacy for grades K-6. Laurelei was blessed to be able to attend Adventist schools from first grade through high school, graduating from Hawaiian Mission Academy in 2004. She is married and is very lucky to have three amazing kids: Isabella, Lucas, and Juliette.
1st & 2nd Grade Para-Professional
3rd & 4th Grade Teacher
Miranda Starr graduated with her bachelors of arts in elementary education from Southern Adventist University. She has taught in several different schools in the east and west and is glad to be part of the OAKS family. She is married and has two children who are students at OAKS.
3rd & 4th Grade Para-Professional
Wendy Robertson has a bachelor’s degree from Southern Adventist University in social work and has worked as a para-professional at OAKS since 2014. She is married and has one son at Collegedale Academy and one son at OAKS. Wendy and her family enjoy traveling, reading, and biking together.
Margo Haughee (Hoy)
5th Grade Teacher
Margo Haughee grew up in an Adventist home in Kansas. She and her husband have three grown children. Her favorite activities include kayaking, walking, biking, reading, and traveling. In the spring of 2018 she and her husband Mike celebrated their 35th wedding anniversary.
In 1982 she received her master’s degree in education from Northeastern Oklahoma State University. She is both denominationally and state certified. Her teaching career has spanned both public and private school teaching. She holds the distinction of being the longest tenured teacher at OAKS.
6th Grade Teacher
Mrs. Adams graduated from Southern Adventist University (SAU) in 2015 with her Bachelors in Elementary Education. She is married with two children, Tyler and BreeAn. She enjoys scrapbooking in her spare time.
7th-8th Language Arts, Science & Social Studies
Janel Jensen is an alumna of Southern Adventist University. She graduated in 2012 with her B.A. in English and a secondary teaching certificate. She then attended Pacific Union College and received her elementary certificate. Janel graduated in 2015 with her masters of science in curriculum and instruction. Recently, she graduated with her Masters of Science in Instructional Leadership. Janel and her husband Geoffrey have a young son and recently welcomed their infant daughter to the family.
7th-8th Math and Bible
Aaron Hall graduated from Southwestern Adventist University in 2004 with a B.S. in Communication and from Southern Adventist University in 2018 with a Masters in Instructional Leadership. Now in his thirteenth year of teaching and fourth year at OAKS, he teaches middle school math and Bible while serving as OAKS Vice Principal.
When he’s not at school, he loves spending time and traveling with his wife, Alisa, and their children, Jackson and Emma. Aaron is also passionate about music, sports, and exploring the great outdoors.
Elementary Music Teacher and Handbells
Mary Wilcox earned her music degree from Southern Adventist University and has lived in the Collegedale area for more than 20 years. She has been active in teaching music education for more than 25 years. Thirteen of those years as a kindermusik instructor. She is married and has three sons in college. She loves animals and music and is currently leading a community strings group called His Strings.
Mr. Bradford has taught elementary and high school bands since the year 2000. He received his bachelor’s degree in Music Education from Southern Adventist University, and his master’s degree in music education from Vandercook School of Music in Chicago. Mr. Bradford has always enjoyed playing any and all instruments, and is grateful for the opportunity to share this with so many students through the years. When he is not teaching or performing he loves to spend time outside with his wife and 5 children.
7th & 8th Grade PE, Computer
4th Grade Math Teacher
Shelly Turkenkopf has served as an administrator and teacher in the Collegedale school system for 7 years. She earned her bachelor’s degree in Psychology and a master’s degree in Multi-age-Multi Grade Education with an endorsement in School Administration from Southern Adventist University. Shelly and her husband Dan enjoy Indian food and hiking on the many wilderness trails in the Chattanooga area. They welcomed a daughter in the fall of 2016. Shelly’s favorite bible verse is 3 John 1:4 “No greater joy have I than to hear that my children walk in truth.”
Administrative AssistantMrs. Davis grew up in Washington State. She moved to Tennessee when she was 17, where she attended Collegedale Academy. Her husband, Ricky, grew up in the Chattanooga area and is an alumnus of OAKS. Her two high school daughters are graduates of OAKS. Before coming to OAKS, she was a church and school secretary for a little over 5 years.