Model what to do. You're not done. Start writing again. Staying on topic. Write a story that is not on topic.
Class edits and offers suggestions.
Prior to this lesson tell them pay attention to beginnings in stories. What a Writer Needs by Ralph Fletcher. Have students look at their endings and ask them if they can begin with those closing words as well. It brings their writing full circle. Read Eric Carle's book, the Grouchy Ladybug, an example of this type of lead.