Critical thinking

Arguments, fallacies, evidence, sources and biases.

15 exercises · 30 progressive levels, from basic to advanced

1. Fact or opinion

   Separate what can be checked from what someone thinks.

2. Premises

   Find the reasons in an argument.

3. Conclusions

   Find what the argument wants to prove.

4. Fallacies

   Recognise common reasoning errors.

5. Generalizations

   Are a few cases enough?

6. Argument strength

   Compare arguments and pick the strongest.

7. Fake news

   Assess headlines and news items.

8. Evidence

   Which proof best supports the claim?

9. Contradictions

   Find two incompatible statements.

10. Building arguments

    Write a well-structured argument.

11. Counterarguments

    Respond to the other side’s main reason.

12. Debate

    Write both sides of an issue.

13. Sources

    Which source is most reliable?

14. Cognitive biases

    Anchoring, confirmation, halo and others.

15. Rational decisions

    Choose based on future costs and benefits.