TOEFL Listening: ETS-TOEFL听力机经 - KQ5AQP3QDJECZA7NP$

What does the woman conclude about the lesson she observed? A. It was not typical of the progressive education approach. B. It was more beneficial to the students assigned the problem than to the helpers. C. It helped some students overcome shyness about working in a group. D. It provided both social and academic benefits to students.