Ground training means classroom or computer-based instruction in the operation of aircraft, aircraft systems, or cockpit procedures. Ground training does not include instruction in an aircraft simulator.
49 CFR § 1552.1
Scope. This subpart applies to flight schools that provide instruction under 49 U.S.C. Subtitle VII, Part A, in the operation of aircraft or aircraft simulators, and individuals who apply to obtain such instruction or who receive such instruction.