In many schools, a wrong answer is treated as something to hide. Psychologists argue that this attitude holds children back. Students who see mistakes as information, they say, are more willing to try difficult problems and persist for longer. One teacher in Nanjing now begins each maths lesson by displaying an incorrect solution and asking the class to find the error. At first the pupils were reluctant, but they soon began to compete to find the slip. The teacher reports that exam results have improved, and that pupils who used to stay silent are now more willing to share their answers, whether right or wrong.

Answer and explanation

Correct answer: C. They competed to find the mistake

  1. Step 1: The passage says they soon began to compete to find the slip.
Answer
They competed to find the mistake.
Why not the others: None of the other three is supported by the passage.

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