Answer:
Few people are able to turn out high-quality writing in first drafts. For most people, good writing requires rereading, rethinking, and sometimes fairly extensive revising.
Many students, however, misconstrue and underestimate what good writing involves, believing that it’s a simple linear process when in fact it is complex and iterative. Many students leave writing assignments to the last minute, expecting to be able to sit down and rapidly turn out a good paper. Thus, they may not give themselves enough time to re-examine premises, adjust the organizational schema, refine their arguments, etc.