Bellanca 7ECA pilot and instructor attempting a wheel landing; bounced and subsequently suffered a prop strike.

Narrative

Landing practice on a Bellanca Citabria. Last landing of the day; power-off short approach to a wheel landing. Approach speed was 80 MPH. All prior landings of the day were on Runway 33; a narrower runway. During the landing phase; the aircraft initially experienced a hard bounce; which forced us back into the air. As the aircraft settled back into another touchdown; the propeller contacted the runway surface briefly. The aircraft bounced a second time; and finally settled into a stable touchdown attitude on the third touchdown. I was at the controls during the touchdowns; but my instructor took over the controls as soon as the prop strike was detected. Cause of initial hard landing: rounding out too high above the runway surface; causing an increased sink rate prior to touchdown; changing runway widths and lighting conditions possibly contributed to the misjudged altitude. Cause of prop strike: inadequate pitch attitude while porpoising. Result of event: aircraft grounded for maintenance. Corrective actions: continue practicing wheel landing technique; avoid get-there-itis syndrome by being ready to execute a go-around when appropriate.