Any topic (writer’s choice)

Why are accurate estimates critical to effective project management (Ch. 5)?
What are the differences between bottom-up and top-down estimating approaches? Under what conditions would you prefer one over the other (Ch. 5)?
Define a white elephant in project management. Provide a real-life example (Ch. 5).
Complete #7 on page 198 this can be done by hand or in MS Project and upload (Ch. 6).