University of Bristol
Institute of Physics logo
Why not try our other site: BEEP Biology & Ethics
 

Teaching Argument

Toulmin's model

Stephen Toulmin’s model, developed in 1984, has become popular in supporting students’ argumentation skills.

Diagram showing Toulmin's Argumentation Model

Arguments consist of:

  • Claims – assertions or conclusions about an event or theory
  • Facts – data that is used as evidence to support the assertion
  • Warrants – the statement that explains the link between the data and the claims
  • Backing – underlying assumptions which are often not made explicit
  • Rebuttals – statements that contradict the data, warrant or backing of an argument

 

To create an argument students need to:

  1. State their claim.
  2. Support it with facts (data) arranged singly
  3. For each fact, give the evidence for the fact (warrant),
  4. For each warrant, state the quality of its validity (backing)
  5. For each warrant and its backing, think of an opposing point of view (rebuttal)
  6. Consider further possible warrants and backing for the rebuttals
  7. Review, having argued the rebuttals, do they need to qualify their original claim?

 

Another Example:

More complex arguments include qualifiers specifying conditions under which the claim holds true.


 The IDEAS Project

 

What's your opinion?

Average rating

Not yet rated

Read comments

speech bubble  No comments yet. Why not be the first person to add one?

Bookmark this pagefacebook myspace bebo delicious diigo stumbleupon twitter reddit yahoo google

 
EXAMPLE

A CLAIM - it is morally right to use animals for testing new medicines

DATA to support the claim - the law (Scientific Procedures Act) protects all lab animals from cruelty or mistreatment

A WARRANT to connects the data to the claim - the Scientific Procedures Act is strictly enforced

BACKING - the framework of Home Office Inspections of testing labs

QUALIFIER - animal testing is morally acceptable when there is no other scientifically comparable alternative.

REBUTTAL - no, animal life is morally on a par with human life.