OVCA Staff


Morgan Anglin is the Related Services Coordinator.

Rhonda Bellah has been part of the OVCA/ISOK team since July 2015. She currently works part-time in the office as the Encumbrance Clerk for ISOK. She also works part-time from home as the Truancy Officer and assists with Immunization and Transcript compliance for both schools.

Sondra Callaway is the Encumbrance Clerk for OVCA since July of 2014. Sondra was born in Indiana and moved to Oklahoma when she was a teenager. She has been married to her husband Chad for 20 years. Sondra received her Associates degree in Liberal Arts from Rose State College and her Bachelor’s degree from Southern Nazarene University in Organizational Leadership. She earned her MBA from Southern Nazarene University in August 2018. She enjoys spending time with her family, attending all Oklahoma Sooners (Boomer Sooner!) football games, watching the OKC Thunder, loves watching HGTV and Food network, volunteering at her church, and scrap booking.

Tina Crow is a special education compliance coordinator. She supports ISOK and OVCA High School.  Ms. Crow joined the K12 team in 2013.  She has over 23 years of educational experience, including being a special education classroom teacher, serving as a special education dispute resolution coordinator at the Oklahoma State Department of Education and various roles in the K12 team.  Ms. Crow earned a Bachelor of Science in Education and a Master of Education degree at the University of Oklahoma, with an emphasis in special education and education administration and curriculum supervision.

Lynne Diveley is the OVCA Registrar, K-8. She has been with k12 since 2013.  She has over 20 twenty years of Customer Service and Team Leadership.   She has spent most of her experience in manufacturing.  She has won two awards for implementing Ideas for Progress in which it cut the company’s cost in half, saving the Dana Corp. thousands of dollars annually in Safety and Quality Control.

Angie Foust holds a Bachelor's degree in Secondary Education from Newman University and a Master's degree in Instructional Design and Technology from Emporia State University. She has over 20 years of experience in education, having taught students ranging from grades 1–12 in three different states over the course of her career. She joined OVCA in 2009 as a teacher and moved into the high school principal position in 2011. Angie Foust transitioned into the Compliancy Coordinator position in January of 2015 and also serves as the Title IX Coordinator.

Tristen Kimball has been with OVCA since October 2015 and is currently serving as the Special Education Registrar. Before joining OVCA, she worked in child care for 10 years. Tristen enjoys helping children learn and watching them grow. In her spare time, she likes to spend time with her friends and family.

Courtney Murray came to the OVCA team in March of 2017 and joined as the High School (Grades 9–12) Registrar. She is an Oklahoma native and has been in the professional field of education since 2006. Courtney has earned degrees in Sociology from the University of Central Oklahoma and Psychology from the University of Phoenix. She has a true passion for education and the way it can positively impact the lives of students, their families and their communities.

Rebekah Richardson has been in education for ten years. This is her fourth year as Testing Coordinator for K12 Oklahoma. Rebekah earned her BA in Elementary Education from Oklahoma State University and holds certificates in Elementary Education and Middle School English and Social Studies.

Raeshelle Sharpnack is the Family Resource Coordinator who brings more than 25 years of social services experience with some of those years in education.  Raeshelle earned a Bachelor's Degree in Social Work from Oral Roberts University, and a Masters of Arts in Marriage and Family Therapy from Southern Nazarene University.

Danielle Shaw is the Special Education Compliancy Coordinator.

Holly Wyers is the Gifted and Talented Resource Coordinator and started with OVCA in 2010.  During her time at OVCA she has mainly taught journalism and English in the high school.  She earned a master’s degree in education in 2015 and completed a leadership certification program in 2018.

Katherine Young is the Title I, ELL and Gifted Coordinator at OVCA and ISOK. She joined the K12 team in 2016. She taught kindergarten for two years. Mrs. Young graduated from Oklahoma State University in 2007 with a Bachelor’s Degree in Elementary Education. She is also certified in Early Childhood Education. She taught 3rd grade in Ponca City for 2 years and was a curriculum specialist for 3 years.


Amanda Coyle is a School Counselor at OVCA and ISOK Schools this year.  She graduated with a Bachelor's Degree in Elementary Education from Nicholls State University in Thibodeaux, LA.  Shortly after, she moved to Houston, TX where she acquired 18 years of experience in education as a Classroom Teacher, Reading Interventionist, and Dyslexia Specialist for grades K-6 in Brick and Mortar Schools.  Recently in May of 2018, Amanda graduated with her Master’s Degree in Educational Psychology from Texas A&M University.  While completing her degree, she moved to Oklahoma and is part of the School Counseling Team enjoying her role each and every day.

Jenn Preston is a school counselor who just joined the K12 team this year! Jenn earned a MA from Liberty University in Human Services/Marriage & Family Therapy and is a licensed school counselor. She came to K12 with 5 years of experience working as a counselor at a private preparatory school in Tennessee.

Hailey Thomas is a high school counselor who joined the K12 team in 2018. She has worked as a high school counselor, specifically with junior and senior students, for nearly 10 years in the Muskogee/Tulsa area. She earned both her BA in Psychology and her M.Ed. in School Counseling from Northeastern State University in Tahlequah, OK. She is a graduate of Muskogee High School in Muskogee, OK where she has lived most of her life. “Real Okies are from Muskogee,” she says. Mrs. Thomas is certified by the State of Oklahoma to work as a school counselor with students PK through 12th grade, but she believes that working with high school students is her calling. At her last school district, she was voted Teacher of the Year, First Runner Up for the 2016-2017 school year. Before becoming a school counselor, Mrs. Thomas worked as a Juvenile Justice Probation and Parole Officer for the State of Oklahoma Office of Juvenile Affairs.

Rachel Thomas is the certified school psychologist for OVCA and ISOK.  She joined in 2017.  She has over 11 years’ experience working as a school psychologist.  She is a Nationally Certified School Psychologist. She obtained her Ed.S., M.S., and B.S. degrees from Oklahoma State University.

Sandra Walck is in her first year as a counselor with OVCA and ISOK. This is her 15th year in online education and has served as a manager and lead counselor for schools across 25 states. Before entering the online education world, Ms. Walck was a college women's basketball coach at St. Gregory's University in Shawnee, OK, where she also taught education courses and supervised student teachers. Ms. Walck earned her BA in Education from Oklahoma Baptist University and her Master's in Secondary School Counseling from East Central University. She also holds a teaching certificated in social studies, middle school English and technology education.

Jill Wallace serves as our Learning Support Specialist and joined our team in 2013.  She has 13 years’ experience in education.  Jill earned a BS in Special Education and a M.Ed. in Guidance & Counseling from Northwestern Oklahoma State University.  She has enjoyed positions as a special education teacher and guidance counselor in addition to her current role.

April White is a School Counselor who joined the K12 team in 2014.  She has over 15 years of experience in education, in Oklahoma and Ohio. April earned a BS in Education from the University of Oklahoma, and a Masters of Education in School Counseling from the University of Central Oklahoma. She holds certificates in Special Education and School Counseling.