Your pitch should contain 3 sections: describe your idea, product, service that you would like to pursue, present a case for why you think the venture would be successful, present a case for why you think the venture could fail.

Overall the project should be no longer than a page (2 at most). I will not grade grammar, spelling, punctuation, etc but it should be something you would feel comfortable with an outside investor reading. Your writing should be more formal than what you present on assignments.