One of my favorite activities to get kids engaged in writing is "Author Share." My 3rd and 4th graders do Work on Writing all week, then on Fridays I conference with them and send them back for edits. At the end of the period we all gather on the rug and whoever is reading can sit in my chair and share their stories. It is an absolutely wonderful 15 minutes. When they are done reading, the other students ask "Wh" questions, and I love it!
This was a very early Author-Share (maybe even the first one!). I quickly changed my lay-out to give them more leg-room. What a fun and easy activity!