The flight instructor reported that, while the student pilot was practicing crosswind landings with the instructor shadowing on the flight controls, he emphasized the importance of maintaining crosswind correction and suggested beginning the landing flare closer to the runway. The student flared too early, and the airplane ballooned. The airplane drifted left in a "nose high, low airspeed situation." The instructor called for a go-around and attempted to take control. The student maintained a "very strong grip" on the control stick, and the instructor was unable to make any significant control inputs. The airplane landed and skidded off the left side of the runway and impacted runway lights. The airplane sustained substantial damage to the left wing and the fuselage. The instructor reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. The airport's automated weather observation station reported that, about 8 minutes after the accident, the wind was from 080° at 11 knots, gusting to 19 knots. The student landed the airplane on runway 05.