Knowing Is Not Enough
Today I can explain why knowing about a bias does not always stop it.
A Look back3 min
- 1.
9 of these 10 children said yes. You pick one child without looking. Which word fits picking a child who said yes? Circle one.
certainlikelyimpossible - 2.
Ali says crisps are the best snack because they got the most votes. Write one thing he must assume is true.
- 3.
Mia wanted the trip to go to the beach. She says only the beach is fair. What is this called? Circle one.
motivated reasoninga facta survey result
B Watch me, then you4 min
In a made-up class survey, 10 children rated how much bias they saw in other people and in themselves.
Nine children said other people show bias a lot.
Only two children said they do.
We spot bias in others more easily than in ourselves. This is called a blind spot.
- 1.
Ali says: “I learned about bias, so my thinking cannot be biased now.” Does this chart support his claim? Circle one.
YesNo - 2.
Write one reason why knowing about a bias does not always stop it. Use the words “blind spot”.
C Your turn6 min
Each chart shows what people said or chose. Decide whether the chart can answer the question.
- 1.
Six children changed their mind after a talk about bias. Does the chart show how many changed? Circle your answer.
YesNo - 2.
Eight children said their own judgement was fair. Does that prove their judgement was fair? Circle one.
YesNo - 3.
Nine children said they were fair. Four said others were fair. Does this show that the nine are right? Circle one.
YesNo - 4.
Seven children knew about a bias before they answered. Does the chart show whether knowing it stopped them? Circle one.
YesNo
Say it out loud: What does the chart count, and does it ever tell us the reason behind the count?
D Spot the mistake3 min

- 1.
Why is Mia wrong? Write one reason.
E Think deeper4 min
One check on our own bias is to swap sides. Picture the person you disagree with using exactly the same reason.

- 1.
Think of a time you were sure you were right in an argument at home or in a club. Would your reason still convince you if the other person had used it? Explain why.