However, when children go to school- with (undesirable attitudes), it is unwise for the teacher to attempt to change their feelings by (cajoling or scolding) them. She can achieve the proper effect by helping them (obtain constructive experiences.) (To illustrate, first-grade pupils afraid of policemen will probably alter their attitudes after a classroom chat with the neighborhood officer in which he explains how he protects them.) In the same way, a class of older children can develop attitudes through discussion, research, ( outside reading and all-day trips.)
重点解释括号内的句子,希望做形象的说明。O(∩_∩)O谢谢!