1.   题目翻译：

你是否同意以下观点：当老师给学生们布置必须和别人一起做的作业时学生们学得比自己学的时候更有效。

2. 审题关键词：

together, more effective, alone

3.   论证分析：

正：

Students come up with more ideas when they work together toward one goal

Student tend to notice the errors when working together

反：

At such age, students tend to hang out and play instead of focusing on their work when they are placed together.

Students are unlikely to share the same performance level. Students of higher level might do all the work and leave the others hanging without any progress.

补：

Depending on the assignments.