Working together in groups requires cooperating and collaborating with others. It also requires motivation.

https://www.ted.com/talks/dan_ariely_what_makes_us_feel_good_about_our_work

Be substantive and clear, and use examples to reinforce your ideas:

• Have you been a part of or watched an amazing team or a terrible team? Could be a group or team at work, in your community, or participating in a hobby. Describe the team.
• What contributed to the team being positive or negative? In your opinion, why were the contributions positive or negative?