Instruction on instruction
U.S. Air Force students work in groups, July 9, 2019, during a lesson on methods of instruction as part of the Instructor Certification Program at the Air National Guard’s primary education center located on McGhee Tyson Air National Guard Base in East Tennessee. (U.S. Air National Guard photo/Master Sgt. Mike R. Smith)

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Photo by: Master Sgt. Mike Smith |  VIRIN: 190709-Z-SM234-007.JPG