Unit 7 C CRITICAL THINKING: REASONING


Reasoning involves looking at pieces of information and linking them together to form a logical conclusion. For example, you see two men in smart uniforms waiting for the bus to the airport. Each of them has a small suitcase on wheels with him. The logical conclusion is that they are pilots on their way to work. Sometimes reasoning involves solving a problem in which several factors limit choices or possibilities, as in the puzzle on the right.


C skills 21


Five friends go to the college canteen for lunch. Unfortunately, they are rather late and most of the food is finished. Only five things are left:


• a tuna sandwich a beef sandwich


• • a shrimp salad


• a cheese and onion sandwich • a carrot, apple and walnut salad.


The friends have specific dietary needs and dislikes:


? 1 • • Chun doesn’t like bread. •• Omar doesn’t eat fish. tuna sandwich. Katie’s brother is allergic to nuts.


What can each person have for lunch? Use reasoning to solve the puzzle above. Tip: drawing a grid may help you.


• Andy is the sibling of the only person who can eat the


Andy and Shanti are vegetarian.


106


English for the 21st


Century • Unit 7


PUZZLE


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