This exercise involves more internalizing the simplicity of thesis formulation, less bothering yourself so early with the intricacies of the drafting process. As you work through the assignment, remember to take it easy, you've likely too much else on your plates to stress yourselves over this one-page assignment.
First, you'll need to isolate a question. "Why is the sky blue," isn't sufficient, though neither would something overly complex fit the purposes of this exercise. Really, try to formulate a fun question, something you'd get a kick out of briefly researching.
Once you have your question, translate it into a statement. For example, if we were to take, "Why is the sky blue," and turn it into a statement, it might sound something like, "The sky is blue because". Essentially, the goal here is to form a thesis, that grounding statement from which so many works evolve and refer back to. Understand, of course, that the formation of a thesis is, in most major ways, a direct route to brainstorming the body of one's research, essays, or even simply this assignment.
Next, take the statement you've created and figure out what could support it. Why would the sky appear blue" The answer, or answers, to your question "what is also your inevitable thesis statement" will birth the rough points, or body, of your essay.
The format of your one-page essay should look like this:
This assignment's formatting: single-spaced, with one-inch margins and 12-point type.
Bring three additional printouts of the assignment, and prepare to engage in a workshop of your piece!