What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
During the landing roll-out the flying pilot (the instructor) asked the student to "apply some brakes" as there are only brakes located on the left side of the aircraft where the student was located. At that time the student did not have his hands or feet on the controls and during the transfer of controls the aircraft veered to the left, the student corrected and the aircraft veered to the right. The instructor applied full left rudder. When this happened it pushed the student's right rudder pedal into his foot putting pressure on that brake. A combination of the turn and brake application caused the aircraft to tip up on it's nose.
As the FAA filed it
DURING THE LANDING ROLL-OUT THE FLYING PILOT (THE INSTRUCTOR) ASKED THE STUDENT TO "APPLY SOME BRAKES" AS THERE ARE ONLY BRAKES LOCATED ON THE LEFT SIDE OF THE AIRCRAFT WHERE THE STUDENT WAS LOCATED. AT THAT TIME THE STUDENT DID NOT HAVE HIS HANDS OR FEET ON THE CONTROLS AND DURING THE TRANSFER OF CONTROLS THE AIRCRAFT VEERED TO THE LEFT, THE STUDENT CORRECTED AND THE AIRCRAFT VEERED TO THE RIGHT. THE INSTRUCTOR APPLIED FULL LEFT RUDDER. WHEN THIS HAPPENED IT PUSHED THE STUDENT'S RIGHT RUDDER PEDAL INTO HIS FOOT PUTTING PRESSURE ON THAT BRAKE. A COMBINATION OF THE TURN AND BRAKE APPLICATION CAUSED THE AIRCRAFT TO TIP UP ON IT'S NOSE.