At about 13:24 eastern time, a Cessna 172L landed hard at Fort Lauderdale Executive Airport after the yoke assembly broke. The CFI and student pilot were not injured. The CFI was flying the airplane and was flaring to land when he could no longer control the airplane with the yoke. He asked the student to pull on the yoke but there was no response from that side, either. The airplane touched down on all three wheels and bounced, then the CFI used the rudder to direct the airplane into the grass.