Narrative:

I was providing commercial flight instruction to a student. This was his second lesson. We had been practicing maneuvers and came back to the local airport for some pattern work. The first touch-and-go was uneventful but the second involved the student retracting the gear mistaking it for the flaps. The student immediately put the gear lever back in the 'down' position but it was too late as the nosewheel had collapsed and the propeller had struck the ground.

Google
 

Original NASA ASRS Text

Title: C172RG STUDENT PLT RETRACTED THE LNDG GEAR INSTEAD OF THE FLAPS DURING A TOUCH-AND-LNDG.

Narrative: I WAS PROVIDING COMMERCIAL FLT INSTRUCTION TO A STUDENT. THIS WAS HIS SECOND LESSON. WE HAD BEEN PRACTICING MANEUVERS AND CAME BACK TO THE LCL ARPT FOR SOME PATTERN WORK. THE FIRST TOUCH-AND-GO WAS UNEVENTFUL BUT THE SECOND INVOLVED THE STUDENT RETRACTING THE GEAR MISTAKING IT FOR THE FLAPS. THE STUDENT IMMEDIATELY PUT THE GEAR LEVER BACK IN THE 'DOWN' POS BUT IT WAS TOO LATE AS THE NOSEWHEEL HAD COLLAPSED AND THE PROP HAD STRUCK THE GND.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.