Unit 6 C CRITICAL THINKING: MAKING ASSUMPTIONS


It is useful to ask questions when we see facts and figures in a text or graph. They help us to assess how much we trust the facts and figures.


1


Look at the advertising slogan and answer the questions. If the answer is not clear write ‘We don’t know.’.


a How many dentists were in the survey? b How often do you have to use Cleanright toothpaste to reduce tooth decay by 20%?


c What does ‘up to 20%’ mean? d How old is the survey? e Is Cleanright more effective than other toothpastes? f How does the survey measure tooth decay? g What was the actual question that the dentists were asked? h Does the survey distinguish between dentists who agreed slightly, and those who agreed very strongly?


i How many of the dentists would recommend the Cleanright brand more than other toothpastes?


j Were the dentists paid by Cleanright to take part in the survey? 2 In your view, can you trust the Cleanright advert? Why/Why not?


C21 skills


85% of dentists agree that using Cleanright toothpaste reduces tooth decay


by up to 20%.*


*Based on a survey of 46 dentists, May–September 2020


A/W Illustration: graph of monthly hospital admissions


102


English for the 21st


Century • Unit 6


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