Why is it important?
Tompkins (1982) suggests seven reasons why children should write stories (these reasons, of course, also apply to writing poetry):
- to entertain
 - to foster artistic expression
 - to explore the functions and values of writing
 - to stimulate imagination
 - to clarify thinking
 - to search for identity
 - to learn to read and write
 
While writing certainly should be enjoyable, and children should have opportunities to choose their own subjects and methods of writing, the importance of creative writing in developing children's cognitive and communication skills cannot be underestimated (Tompkins, 1982).
Multiple Intelligence Theory
If you search the Web you can find a great selection of creative writing activities.Creative writing activities offer more than paper and pencil stories. Rather, creative writing activities for children provide techniques for teaching your students through the ways they learn best. Many nice examples can be found below, where Gardner's Multiple Intelligences theory provides hands-on strategies and techniques to help kids achieve in all facets of school life through creative writing.
More information here: http://www.creative-writing-ideas-and-activities.com/creative-writing-activities.html