One of a series of secondary level teaching units presenting case studies with pro and con analyses of particular legal problems, the document presents a student's lesson plan, a teacher's lesson plan, and a lawyer's lesson plan for examing legal issues concerned with immigration and deportation. The unit exposes students to the quota system (a quantitative restriction on immigration to the United States) and to the rules of treaties entered into by the United States with other countries. Although similar in content, student and teacher lesson plans are presented separately to facilitate independent or small group work among students and to provide additional background information for teachers. Prior to a lawyer's visit to the classroom, students complete an opinion sheet as a means of exploring their attitudes toward immigration, and read an article entitled "A Nation for Immigrants?" An activity and glossary are followed by case study analyses and question answering. Due process rights for aliens are outlined. Teacher materials include a reading on court systems and a simplified view of the federal and California court structures. The lawyer's lesson plan provides further questions and discussion on the case studies, discussion concerning resolution of the dispute, and a listing of related court cases pertaining to immigration and deportation. (LH)