This resource on the Haymarket Affair/ Riot of 1886 was developed for high school U.S. History students during their studies of Gilded Era labor unionism. The lesson begins with pre-lesson activities, including a primary source visual for students to observe, interpret, and question, and discussion questions for the teacher to pose to the class, with tips to help amplify participation. Next, students work in small groups over the course of two days, completing a Web Quest (2 URLs provided) to le