How convincing is your child? Does he propose ideas and activities he would like to try? When it comes to writing, there are many opportunities to convince others of something you would like to have or do. Proposal writing, like all writing, includes implementing writing process, and is for the most part descriptive in nature. Here's a great project to get your child on the right track towards writing well thought-out proposals (it may even be a substitute to all the begging and whining!)
Have your child imagine that your community is having an art show (if there's a real art exhibition in the works, all the better!), and that he would like to enter a piece. It can be any type of art project he likes: sculpture, photography, painting – the sky's the limit. Before you enter the competition, however, you must describe your project to the judges. Get started by writing a description that gives them a clear and exact picture of your project.