A fire lookout is a very important job that requires a special type of person. In On the Lookout, students will read an interview with a fire lookout who explains what life in a lookout tower is like and what he does to help keep firefighters safe and to protect the environment. This book can be used to teach students how to determine an author's purpose and how to identify combined sentences.A fire lookout is a very important job that requires a special type of person. In On the Lookout, students will read an interview with a fire lookout who explains what life in a lookout tower is like and what he does to help keep firefighters safe and to protect the environment. This book can be used to teach students how to determine an author's purpose and how to identify combined sentences.