Need management help with an earned value

How and why does the Earned Value (EV) method give a clearer picture of a project cost and schedule status?

Explain the “Sticky Notes” process when developing a WBS, and what are the advantages of using this process?

When preparing a Work Breakdown Structure (WBS), what information is needed; and how many levels would you chose for the WBS and why?

Support the statement “Successful project management is essentially a balancing act.”