Flexible thinking is a key strength for creative problem solving and group collaboration. It's often hard to know who has good flexible thinking, because it is very different from just getting good grades. Flexible thinkers tend to do their best in project work so be confident and don't feel like you need to defer to a classmate who thinks he or she has the "right" answer. Keep your strength in mind while brainstorming and be sensitive to the participation of all members of the group.