An answer key and discussion guide for the Assembly Line Simulation activity, helping teachers connect the classroom activity to the historical rise of labor unions.

A teacher's answer key for the 'Captains or Robbers?' primary source activity, providing sample analysis for the Carnegie and Rockefeller documents.

A teacher's answer key for the Industrial Titans Graphic Organizer, providing sample notes and expected responses for student mastery.

An answer key for the Gilded Age Study Guide, providing clear definitions and concise summaries of the major unit concepts.

A comprehensive answer key for the Industrial Era Unit Test, providing correct multiple-choice responses and detailed grading criteria for primary source and short-answer questions.