A licensed pilot with an Instructor was flying a new C172 and had a tendency to over rotate which resulted in a tail strike on one landing; but Maintenance found no damage.

Narrative

I was giving a dual flight to a student in a 2005 G1000 Cessna 172. It was his first flight in a G1000 aircraft and we were on an orientation flight. He has soloed recently and we were doing some additional dual work. We started the flight by performing some air work; giving him an opportunity to get a feel for the late model aircraft before doing some touch and goes at an outlying field. He commented [that] it flew like a Ferrari in comparison to the 30 year old airplanes he's been flying. He had a tendency to over-rotate a few times which we worked on correcting. Upon returning to our departure airport he over-rotated again on landing this time scraping the tail skid. The Tower queried us as to whether we had struck the tail; which I acknowledged in the affirmative. We parked the aircraft to await a Maintenance inspection. Maintenance found nothing wrong with the aircraft. This is a Part 61 student who is coming along very well. We reviewed takeoff and landings the last two flights and the over-rotating tendency is gone. It appears this shouldn't be a problem again. I'm using this situation as a training experience to introduce him to NASA reports and NTSB 830.