News lessons from oximeters to ai, where bias in medical devices may lurk Level 2

Key language
a. Match the verbs in the left-hand column with the nouns or noun phrases in the right-hand 
column to make expressions from the text.
1. give 
a. systems
2. develop 
b. pulse rate
3. ethnic 
c. data
4. measure 
d. protection
5. interpret 
e. patients
6. treat 
f. background

Discussion
a. Discuss these statements.
• “All healthcare should be free.” 
• “AI is dangerous for society.”

In your own words
a. Use an internet search engine to find out as much as possible about AI and its uses. Report 
your findings to the class.

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From oximeters to AI, where bias in medical devices may lurk
Level 2:
 
Intermediate – Teacher’s notes
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it is equally possibly to underestimate one and that 
people need to inhale as well as exhale (the phrasal 
verbs breathe in and breathe out are more normally 
used in speech). 
Key:
1. bias
2. assume
3. gadget
4. overestimate
5. crucial
6. exhale
7. vary
8. pulse
9. handful
10. funding
11. inclusive
3. Comprehension check
a. The answers given are only suggestions and 
students may correctly answer the questions in 
different ways, e.g., in #9, they may simply say 
‘They don’t do this very often.’ 
Key:
1. False. They measure the amount of oxygen in 
the blood.
2. False. They are higher among ethnic 
minority people.
3. False. They protect wearers from particles that 
people breathe out.
4. True
5. True
6. False. They measure lung capacity.
7. True
8. True
9. False. They rarely do this.
10. True
4. Key language
a. Students could be asked to do this exercise 
individually and then compare their answers in pairs. 
Ask students to refer back to the text to check their 
answers and see the expressions in context.