This method is simple, but composing in Pine has some disadvantages. Your email message to me can be composed over a period of time because you can postpone the message after working on it for a while and Pine will save it for you. But you can't print out a rough draft. This method is the easiest, and I advise you to do the assignment this way. Don't send me attachments, please.
Email sometimes makes people chatty, casual, informal, and downright silly.
In other words, be fairly formal and direct. Break down the message into chunks with heads that correspond to the main parts of your message. For now, however, your audience is someone who probably does not know anything about your organization, your position in the organization, the problem you see, the solution that might fix the problem, etc. So be sure to keep the information needs of your audience in mind. The audience is also wanting to be persuaded that you will do a good job with this topic.