HFDisoriented student — teach?
Trust and fly the instruments; bodily senses are unreliable.
SCANPrimary VFR collision avoidance?
See-and-avoid with a systematic scan & clearing turns.
INCURIncursion prevention?
Verbatim hold-short/crossing readback + current diagram + sterile cockpit.
AERODissymmetry of lift?
Advancing vs retreating blade lift difference in forward flight; equalized by flapping.
AEROCollective vs cyclic vs pedals?
Collective = power/height; cyclic = disc tilt/direction; pedals = yaw/antitorque.
PERFOGE vs IGE hover power?
OGE needs more; high DA/weight may make OGE impossible. Teach the HV diagram.
REGSEndorsement source?
AC 61-65 (current edition); verify the requirement before signing — serious responsibility.
NIGHTNight vision?
Off-center viewing, ~30 min dark adaptation, 91.205(c) equipment; teach illusions.