PLT TRAINEE OF A C172; WITH RPTING PLT INSTRUCTOR ABOARD; LOST CTL OF THE ACFT DURING LNDG DUE TO WINDSHEAR AND RAN OFF SIDE OF THE RWY WHEN A XWINDSHEAR TAILWIND PICKED UP THE ACFT ON ROLLOUT AND TIPPED UP ON THE L WING STRIKING; AND CAUSING DAMAGE TO THE PROP AND L WINGTIP.

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MYSELF AND A STUDENT FLEW TO SD10 TO PRACTICE SHORT AND SOFT FIELD TKOFS AND LNDGS. THE WIND WAS 070 DEGS AT 10 KTS AT FSD (17 MI FROM SD10). WE COMPLETED 6 TOUCH AND GOES WITHOUT INCIDENT. ON THE 6TH ONE WE LANDED 1/2 WAY DOWN RWY 17 AND DECIDED TO TAXI TO THE END AND TKOF ON RWY 35 (ALL 6 WERE ON RWY 17). WE TOOK OFF ON RWY 35 AND ENTERED THE TFC PATTERN. WE MADE A STANDARD APCH AND LNDG WITHOUT INCIDENT. AS THE GND ROLL BEGINS THE AIRSPD DECREASES AND FULL R AILERON IS TURNED TO THE R. AS THE GND AND AIRSPD DECREASE ENOUGH WE WERE GETTING READY TO RAISE THE FLAPS. THE TAIL AND R WING THEN ROSE; CAUSING THE ACFT TO VEER TO THE L. FULL BACK ELEVATOR WAS APPLIED BUT THERE WAS NOT ENOUGH AIRFLOW FOR EFFECTIVENESS. THE L WING STRUCK THE GRASS ALONGSIDE THE RWY. THE PROP THEN STRUCK THE ASPHALT RWY AND SURFACE. THE ACFT THEN CAME TO REST UPRIGHT ABOUT 35 FT L OF RWY 35. NO INJURIES TO STUDENT OR CFI. DAMAGE TO ACFT WAS L WINGTIP CRACKED AND PROP BENT. THE PWR WAS AT IDLE AT THE TIME OF THE INCIDENT.