4B 4 5 4.3 Listen to the answer to puzzle 2. What is the answer? What is the difference between puzzles 1 and 2? 4.4 Listen to a logic expert explain how best to solve


logical- and lateral-thinking puzzles. Are the sentences true or false?


C21


CRITICAL THINKING: Logical vs lateral thinking See page 63


a All puzzles are basically the same. b You need to be systematic to solve a logical-thinking puzzle. c You just need to look at the most likely possibility to find the answer. d When you do a lateral-thinking puzzle, you need to avoid making assumptions. e The best puzzle-solvers use a combination of logical and lateral thinking.


6


Read the story and answer the question at the end. When you are ready, discuss your answers in groups.


A long time ago, in a small village, lived a poor farmer and his only daughter. The farmer owed a lot of money to a very mean moneylender and he didn’t have the money to pay him. The moneylender suggested a solution – he would cancel the debt if he could marry the farmer’s daughter.


The farmer and his daughter were both horrified by this idea and said no. But the moneylender suggested they let the decision be made by chance. He arranged for them to meet on a beach and told them the plan. He said to the farmer, ‘Look down. This beach is covered in black and white stones. I will put one black stone and one white stone into this bag. Your daughter will take out one stone without looking. If she takes the white stone, she does not have to marry me, and we will cancel your debt completely. If she picks out the black stone, your debt will be cancelled, but your daughter must marry me. If she refuses to take out a stone you will go to prison.’


The farmer regretfully agreed. However, the daughter was very observant and she noticed that the moneylender picked up two black stones and put them in the bag. She knew that if she pointed out that the moneylender had cheated, he would become very angry and throw her father into prison. But she didn’t want to marry the moneylender. What could she do?


English for the 21st Century • Unit 4 59


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