Challenges: Some challenges require students to post their poster on the wall and groups come around and vote on the posters. The groups are each given a rubric and told, “You should not vote on your poster.” They usually then ask, “Should not or “Can not?” I then leave it to them to act ethically. Here is a sample poster challenge. We used the Case Study question from http://ethicsops.com/LessSugarMarketing.aspx.