There is a difference between a team and a work group. A team is a group of people whose success is dependent on the performance of each member. A work group is a group of people whose success is not dependent on the performance of each member.
Now that you know the difference, have you ever participated in a team (note, anything from atheletic to work team)? What did you like about it, what did you dislike about it? What makes a team successful. What prevents a team from being successful?
You have asked about a personal experience of being a part of a team as defined above in your posting.
The most significant team that I was a part of would have to be a college basketball team. I was not the best player on the team and I wasn't even good enough to be a team starter, but I was good enough to be on THE Team. That is what I like most about team sports, you don't have to be the very best to participate and you don't have to be the very best to be successful. In the league we played in, no one on our team was the best player in the league. Many teams had better individual players, but we played better than anyone else as a team. That translated into 2 regional championship seasons in the three years that I played. As far as basketball goes, a work-group could be compared to a pick-up game at ...
This solution provides a real life example of a personal experience of being a part of a team