Prewriting is a tool that will help you combat the feelings of panic and worry that can accompany a writing assignment, particularly if you do not know where to begin.
Directed Questioning is useful for those who already have a topic that interests them but they are not quite sure where to start. This method will help narrow your broad idea. For example, you know you want to talk about Walt Disney, but what exactly do you want to focus on?
These questions may help you find the answer:
What is my purpose in writing about this topic?
If you were writing about Walt Disney, do you want to tell everyone about his career in animation? How about his childhood? Or his life during World War II? How about his political leanings? Maybe you just want to talk about Disney World instead.
Who is my audience and why would they care about my topic?
What can you say about the topic that would be relevant and interesting to the people you are writing for? What will your audience take away from your paper?
Then ask yourself these questions:
Gather as much information as you can and talk to your audience. What would they find interesting? What do YOU think they would find interesting? What grabs and holds YOUR attention? Jot down everything that comes to mind. Don't be afraid of throwing stuff out later; just gather what you can to get ideas.
Next, tell your idea to someone in a few sentences to make sure it makes sense and maybe gather some ideas from them.
Make an outline of some sort to show the flow of ideas. Write the first draft from there.