Everything you need to understand or teach Exiles of ColSec by Douglas Hill.
Exiles of ColSec is a rugged sciencefiction adventure that addresses the issues of leadership, cooperation, and survival. The teen-age heroes, juvenile delinquents exiled to a distant planet, must learn to set aside their differences and work together to learn about and survive in their new home. Obstacles to their success include the menacing alien lifeforms they encounter, as well as a member of their own group, a dangerously unstable ex-government thug known as...