Learn when to double-check, how to catch mistakes, and how to verify before you use it.
Know What Claude Doesn't KnowEasy
Claude's knowledge has a cutoff date, and it doesn't automatically know today's news or prices.
Ask How Sure Claude IsEasy
Asking Claude to flag uncertain parts of its answer surfaces the parts worth double-checking.
Always Re-Check the MathEasy
Numbers and calculations are exactly where a quick manual check matters most.
Spot a Made-Up FactMedium
A confident tone doesn't mean an answer is accurate — watch for oddly specific details you can't verify.
Ask Where That Came FromMedium
Asking Claude to explain its reasoning or point to where an idea came from helps you judge how much to trust it.
Verify Before You Hit SendHard
The riskiest moment is right before you use an AI answer for something real — that's when a final check matters most.
Put It to the TestHands-On
Hands-on: give Claude a task with a number or fact in it, then verify the answer yourself.
Checking Claude's Work QuizFinal Quiz
Six questions covering everything from this journey.
