Paragraph 1: Explain the issue
Paragraph 2: Describe the rhetorical situation (why is the issue controversial and who is involved in this controversy)
Paragraphs 3-5: Explain three positions on the issue along with some reasons for each of them (who is for it, who is against it, and who may take a middle ground: who may be for it or against it but with qualifications)
Paragraph 6: Explain your interest in the issue and the position you favor
Paragraph 7: Make a tentative claim that sets forth your position