When To Diagram

You should diagram everything diagrammable, at the start. It will help you internalize LSAT logic. Once you get used to it, you shouldn’t diagram most things. You’ll still be doing the same process, but it will be in your head, and faster.

Keep making diagrams until you’re very confident about them, and can draw them with few or no mistakes. Then you’re ready to stop drawing them in most cases.

Only Certain Questions Are Good to Diagram

Diagramming is most applicable to:

  • Most Logic Games (never stop drawing diagrammable statements here)

In logical reasoning:

  • Inference Questions
  • Sufficient Assumption Questions
  • Parallel Reasoning Questions

It Depends on The Context

If a question says: “David is a Professor at the university of Toronto. Everyone who works in Toronto pays Ontario taxes”, then you should make a diagram: D –> T –> OT

If a Question says “David is a Professor at the University of Toronto, and in his research has found that….”, then you shouldn’t diagram D –> T

Diagramming is not a mechanistic process.  It should be there to help you understand the question.  It’s not useful to say “If you’re David, then you work at the University of Toronto”, unless that helps you connect it to something else.

Next:  Assume Statements Are True

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