On August 24, 2003, about 1320 Pacific daylight time, a Cessna 172M, N64291, collided with terrain during the landing approach at Riverside Municipal Airport, Riverside, California. The airplane was operated by the owner/student pilot under the provisions of 14 CFR Part 91. The certified flight instructor (CFI) and student pilot were not injured, and the airplane was substantially damaged. Visual meteorological conditions prevailed, and a flight plan had not been filed. The flight originated at Corona Municipal Airport, Corona, California, about 1240. In a written statement, the CFI stated that he and the student were practicing a short field landing with the student pilot at the controls. The student pilot allowed the airplane to get too low on final. The CFI recognized that the airplane was too low, took over the airplane controls, simultaneously adding power and raising the nose. The airplane struck a berm that led up to the approach threshold of runway 27. The airplane bounced and came to rest on the approach end of runway 27.