classes:  lecturer. take many practice sessions, lose a lot of important knowledge of unpopular oop and specific instructions content and methods of practice are not enthusiastic.  curriculum. take many practice sessions, lose a lot of important knowledge of unpopular oop and specific instructions content and methods of practice are not enthusiastic.  facility. take many practice sessions, lose a lot of important knowledge of unpopular oop and specific instructions content and methods of practice are not enthusiastic.  general. take many practice sessions, lose a lot of important knowledge of unpopular oop and specific instructions content and methods of practice are not enthusiastic.