It is critically important that students learn how to work and cooperate in a group in advance. Personally, I think it is reasonable to give every team member the same score for the performance in a team work. I feel this way for two reasons, which I will explore in the following essay.
First of all, this evaluation standard of owning same score as a team is very efficient, both for teachers and students. The benefit for the teachers to give the evaluations is obvious, since they can give one score to a group of students instead of several ones for each team. As for the students, however, they can also save time in the process of determining who should do what. Given a same final score, the team members do not need to compete for higher-based functions of the project, leaving the lower ones alone. For instance, I had two courses in my third year of the university, both including a team work project. One evaluation was given based on the group result, while the other was on personal contribution and the team's overall performance. After the final exams, the first marks came out much sooner than the second one, because the professor spent much more time reviewing each team's project and matching the contributions to each person.
Secondly, to own a shared score will definitely encourage innovation in the process. Knowing that everyone in the team will get the same result, all the members will focus on how to improve the project results. They are more willing to come up with distinctive ideas to make their work distinguish from others'. My personal experience gives a compelling illustration on this. Back to the first course I mentioned above, our team members made a super interesting presentation form in the final display. We added a video made by ourselves, which was quite attracting to the class at that time. The professor was so fascinated by our presentation and we all got an A in the evaluation.
In conclusion, I agree that giving the same grade to the whole team is better than evaluating by person. This is because the one-score approach can not only save time for professors and students, but also be inspiring to make students propose more innovations during the project.