It's a time when physiological changes and the search for their own identity make life very difficult for students, and when they easily cross boundaries set by their school, which can result in serious conflict.
生理的變化、追求自我角色的認定等等，使得這個階段的學生很難帶，也最容易逾越重重校規畫下的界線，甚至因此引發嚴重的衝突。