Majors and Programs

• Rebecca Schlosser, J.D., Ed.D.
• MAB 309E Box C-115
• 432.386-3830 (cell)
• rschlosser@sulross.edu

Dr. Rebecca Schlosser has been teaching in the SRSU Leadership Program since Summer 2006. Dr. Schlosser is a full professor who currently serves as Director for Principal and Outreach Programs. During her more than 15-years teaching in the SRSU Educational Leadership Program, Dr. Schlosser has written curricula and taught nearly all the courses in both the principal and superintendent programs. Dr. Schlosser specializes in school law and online teaching. She was instrumental in designing the program to obtain the new Principal as Instructional Leader certificate in 2018. Since that time, Dr. Schlosser has co-written and partnered with Texas school districts for three principal residency grants and sought and obtained TEA approval to serve as an approved partner with Texas school districts for these grants. Dr. Schlosser has served as a Regional Reporter for the Education Law Association and has published scholarly articles on educational leadership topics that includes attendance laws, corporal punishment, school discipline, and educational trends related to the juvenile justice system.

• Jennifer M. Haan, Ph.D.
• MAB 309C Box C-115
• 575.636.7237 (cell)
• jennifer.haan@sulross.edu

Jennifer M. Haan, Ph.D. is an Assistant Professor and Program Coordinator of Educational Leadership at Sul Ross State University.  She has held various administrative positions in K-12 in Texas, New Mexico, and California, including school site administrator and central office administrator overseeing programs for English Learners and multilingual programs.

She received her B.A. in American Studies from University of California, Santa Cruz.  Her M.A. is in Educational Leadership and Administration from California State University, Los Angeles.  Dr. Haan earned her Ph.D. in Educational Leadership and Administration from New Mexico State University. The focus of her research is social justice leadership as related to the experiences of students in the K-12 public education system.

• Shirley Coleman, A.B.D., M.Ed.
• MAB 305 Box C-115
• 432.837.8170
• scoleman@sulross.edu

Professor Coleman has been teaching as an Adjunct Professor in the Principalship Program and the Sul Ross Educational Leadership Program since 1989. Prior to that she was a SRSU Assistant Professor in the Curriculum and Instruction program for 4 years fulltime and 6 years parttime.  She began her career in Pecos, TX as an ESL Kindergarten teacher in 1970.  She has also been an Elementary Principal, State and Federal Programs Director and Superintendent (15 years).  In addition to her work at Sul Ross she has taught as an adjunct at the University of Houston, Victoria and as a graduate assistant at the University of Texas at Austin where she is ABD with a degree in Curriculum and Instruction.  She holds an Associate of Arts degree from San Antonio Junior College, B.S. degree in Elementary Education and a M.Ed. in Counseling both from Sul Ross.  In addition, she holds eight certifications in Texas.  Ms. Coleman has presented over 100 in service presentations, conference presentations and/or Keynote speeches at conferences, trained staff and written curriculum for Child INC, a large daycare provider in Austin and chosen to work with several pilot programs for the Texas Education Agency.   Ms. Coleman has served as president of the Texas Association of Rural Schools, Association for Compensatory Educators of Texas, Texas Council of Women School Executives and Texas Elementary-Kindergarten-Nursery Educators.  She was recognized by Region 18 ESC as the Advocate of the Year for Gifted Students and awarded life memberships to the Texas Association of School Administrators and the Texas Association for Community Schools.  In addition to her work at Sul Ross she currently serves as the Executive Director for the Association for Compensatory Educators of Texas.

• Jeanne A. Walker, M.ED.
• MAB 309C Box C-115
• 214.232.4689 (cell)
• jeanne.walker@sulross.edu

Professor Jeanne A. Walker has been teaching as an Adjunct Professor in the SRSU Educational Leadership Program since 2019. Public school experience includes over forty years of classroom instruction, as well as campus and district level administration. Since retirement from public education, her focus has been on supporting the work of campuses designated for school improvement. Assistance has been provided in instructional practices, development and implementation of PLCs, book studies (Get Better Faster, Leverage Leadership, Teach Like a Champion, Breakthrough Principals, Great Habits, Great Readers), effective coaching practices, Effective Schools Framework, best practices for secondary language learners and special education students. A key component has been working with campus leaders to closely monitor the learning progress of all student groups and progress toward meeting quarterly and annual goals of the Targeted Improvement Plan.

Professor Walker is a proud graduate of Texas Tech University with a Bachelor of Science in Speech Therapy and Elementary Education. She was selected for the Meadows Fellowship and earned her Master’s in Educational Leadership at Texas A&M at Commerce. In addition, she is a certified Academic Language Therapist and spent over fifteen years working with dyslexic students and holds seven certificates from the state of Texas.

• Raul Medellin, Ed.D.
• MAB 309C Box C-115
• 915.588.7039 (cell)
• raul.medelln@sulross.edu

Dr. Raul Medellin is the Coordinator of Accountability at the Ysleta Independent School District in El Paso, TX. He uses data and policy analysis to forecast state and federal accountability outcomes, and to generate actionable data for campus and district stakeholders. Dr. Medellin has served at YISD since 2005 as a high school mathematics teacher, campus testing coordinator, benchmark specialist, and program evaluator. Before working in public schools, Dr. Medellin served as professor of management at the Universidad Autonoma de Ciudad Juarez, where his research interests included higher education policy, process improvement, and system dynamics. He has also served as department head for the office of academic exchange and international affairs, as raw materials manager in a manufacturing plant, and as a researcher in theoretical nuclear physics.
Dr. Medellin earned an Ed.D. in Educational Leadership from the University of Texas at El Paso, an M.S. in Educational Management from New Mexico State University, and a B.S. in Physics and Mathematics from the University of Texas at El Paso. His dissertation title is Contested Narratives: Theoretical Foundations for a Predictive Model of Policy Content.

• Jesse R. Salazar, Ed.D.
• D206 – Eagle Pass Campus
  3107 Bob Rogers Drive
• 830.876.5030 (cell)
• jesse.salazar@sulross.edu

Dr. Jesse R. Salazar is an Assistant Professor of Education for the College of Education with Sul Ross State University. Dr. Salazar is an experienced public-school teacher and administrator in Texas. He has been a coach, teacher, assistant principal, principal and has worked in all grade levels. He also has central office experience as a personnel director for human resources and as a superintendent. Dr. Salazar most recently served as a faculty member for Texas A&M International University teaching both undergraduate and graduate classes in education and educational administration. He received his bachelor’s degree from Texas State University, San Marcos, Texas, his master’s from Sul Ross State University, Alpine, Texas, and his doctorate (Ed.D.) from Lamar University, Beaumont, Texas. He also served in the military prior to entering the field of education.

• Tonya Senne, Ed.D.
• F212 – Del Rio Campus
  205 Wildcat Drive
• 830.703.4839 (cell)
• tonya.senne@sulross.edu

Dr. Tonya Senne graduated from Sul Ross State University with a Bachelor’s of Science Degree in Agri-Business and worked for the USDA after graduation. She later pursued her certification in Elementary Education, attained her Masters in Educational Leadership and Mangagement from New Mexico State University and then her Doctorate Degree from Gardner Webb University in North Carolina. Dr. Senne has 28 years in public education. Twenty years as an educational leader, Principal, Assistant Principal, and Director of Curriculum and Instruction. She has been an Adjunct Professor for Angelo State University for two years and is now part of the Ed. Leadership Team at Sul Ross State University. Dr. Senne is currently the Director of Teacher Education/Certification and Interim Department of Education Chair at Sul Ross State University-Rio Grande College.

• Chris Adrian Avalos Tresslar , Ph.D.
• A125 – Uvalde Campus
  2623 Garner Field Road
• 512.769.4416 (cell)
• cxt19da@sulross.edu

My name is Chris Adrian Avalos Tresslar and I work in the Educational Leadership department for RGC on the Uvalde campus. I have worked in education for 28 years. I was a teacher, coach, and administrator in K-12 for 18 years and have been teaching at the Univeristy level since I completed my Ph.D. I attended St. Edward’s University in Austin and received a BBA in management. I earned my Master of Education from the University of Mary Hardin-Baylor and my Ph.D. in Educational Leadership from Texas A&M University College Station.  I have three grown children. My son is in the Air Force and my two daughters are both elementary teachers in the Dallas area.

Master of Education in Educational Leadership

Year 1

Master of Education in Educational Leadership

Year 1

Principal as Instructional Leader Certification

Year 1