Asastudentinschool,woshouldbepoliteinclass.Ithinkweshouldnottalkinclasswithoutteacher'sagree.otherwise,inmyopinoin,Ithinklistentoteachercarefullyinclassisreallypolite.Forexample,wewilldisturbotherstudentifwetalkloudlyinclass,butifwestudyhardwithouttalking,teacherandotherswillhaveabetterenvironment.