Any kind of writing needs time for the ideas to take shape and for the exposition to gain polish. Take a few minutes to figure out the assignment. To resolve any uncertainties, talk with the professor. Prepare a rough draft. Don t worry about perfection.
Writing can be a way of trying ideas out.
Strike out those that don t work and concentrate on those that do. Identify relevant information and illustrations to give depth to your case and make it convincing. If at this stage you are having difficulty getting started, return to the discussion questions and material or consult with the instructor. Set the draft aside for a time. If you don't have that much time, take whatever interval you can the longer the better.