In this module, students will explore the scientific, conceptual, and ethical implications of embryonic stem cell research. Why should they care? The decision on whether to allow or ban stem cell research may have a signifycant impact on the lives and welfare of thousands if not millions of people. The reason the debate between advocates and opponents of stem cell research is so fierce is that the arguments used are based on deep seated beliefs about the nature and the status of human life and personhood. This lesson involves class discussion, small group and individual activities.