第一篇文章总结 陈燚

Susan Dynarski generally bans electronics,includinglaptops,in her classes and research seminars.Because she thinks the negative effects of electronic products outweigh the positive.studies have shown,Users of electronic devices are not only likely to be affected by a selection bias, but may also have negative externalities on others.So students should avoid using electronic devices and use more paper and pens in the class.