-About the Teachers

Marine Corps Junior ROTC Classes are taught by the Senior Marine Instructor (SMI), Major Jackie Schiller II, USMC (Ret), and the Marine Instructor (MI), Sergeant Major Juan Martinez, USMC.

Major Jackie L. Schiller II
Office: 512-464-6089
email: jackie_schiller@roundrockisd.org

(click on picture for biography)
Sergeant Major Juan J. Martinez
Office: 512-428-7932
email: juan_martinez@roundrockisd.org

Teaching Schedules:

A DAY: 1st, 2nd, 4th periods (3th period conference)
B DAY: 5th, 6th, 7th periods (8th period conference)


Both the SMI and MI are available before school 8AM - 9AM Monday through Friday for tutorials.