Lesson 5 Learning Objectives:

  • Identify when premises work together to provide a single reason to believe a claim.
  • Visually represent this basic structure type and distinguish it from independent and sub-premises.
  • Discover missing or implicit co-premises.
  • Articulate the reasoning that connects a piece of evidence to the claim it supports.

Expected completion time: 27 min (15 min videos, 12 min exercises)

In the argument types you have learned about so far, each premise acts independently to support another claim (the main claim or another premise). But premises can also “hold hands” to work together, which leads us to the very important concept of the co-premise.

Co-premises are vital in argument mapping, but can also be difficult for students to fully grasp. This lesson will help you understand what co-premises are, how they work, and how you can effectively teach students about arguments containing co-premises.