This document discusses different types of students observed in high school group projects: moochers, brains, and team players. Moochers, making up 25% of students, let others do the work and don't contribute much. This hurts their learning and skills development. Brains, 5% of students, take control and don't share responsibility. This can cause stress and alienate others. Team players, the majority at 80%, take personal responsibility, pull their own weight, and value group effort and learning over grades. Being a team player leads to better long term outcomes like career advancement and relationships.