Scholar's mate is a checkmating technique used against beginners by those who want to get a quick point by finishing the game early.
It happens with the following moves:
01 e4 e4
02 Bc4 Nc6
03 Qh5
In order to drive away from the Queen, a beginner may play
03 -- Nf6??
Usually, this move is a good opening move but not when the f7 Pawn is watched by the Queen and Bishop.
04 Qxf7 #