“How Can Group Activities Help Us Study English better”请以这个题

Many people believe that group activities can help students to learn English better. The crucial question is: how to take full advantage of group activities? I think there are four points. First, the activity should have a clear task and aim. Second, the members in the team should know their job and work together. Third, the teacher ought to offer help when students get into trouble. Last but not least, the results of the activity should be shared with all classmates. Only so, students can study English better through group activities.
累死我了,字数应该差不多吧.如果哪句话不懂,我可以给你翻译或者换种形式表达.