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Tonya Sharp


Mrs. Tonya Sharp completed her Educational Specialist Degree in Secondary Principalship, master's in science education and bachelor's degree elementary education all from Northwest Missouri State University. Mrs. Sharp has been an educator for 25 years. She began her teaching career at Savannah Middle School and joined the St. Joseph School District in 2003.  She has taught middle school science at Bode, Spring Garden and the Virtual Academy. Last year, she joined Robidoux as the assistant principal and athletic director. 

David Arnold

Assistant Principal

Mr. Arnold began his educational career with the St. Joseph School District in 2006 as the Transition Coordinator, and he was a special education teacher at Edison Elementary from 2007-2014. He then taught English Language Arts and special education at Savannah Middle School for eight years prior to returning to the St. Joseph School District in 2022 as the assistant principal at Robidoux Middle School. Mr. Arnold received a specialist degree in Education Leadership from Arkansas State University; a master’s degree in Special Education and a bachelor’s degree in Public Relations from Northwest Missouri State University; and an associate’s degree in General Studies from Southwestern Community College.

Mr. Arnold and his wife, Natalie, have four adult children: Colin, Tyson, Addison, and Gracen. He enjoys spending time with his family, exercising, traveling, and working and hunting on the family farm.

Biography about David Arnold

Main Office Staff

Shablix Jones

Administrative Assistant