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Workbook exercise 7.5 Vitamin D absorption Worksheet 7.2 Checking your teeth Worksheet 7.3 The structure of the digestive system Worksheet 7.4 Digestion vocabulary
Topic 3
Cholera and diarrhoea
Coursebook section 7.4 Teaching ideas ◆
You could begin this section with a news report about a recent outbreak or epidemic of cholera, and discuss with the students how it is caused by a bacterium, and the conditions in which the disease is most likely to spread. ◆ Work through Figure 7.25 with students, explaining how cholera causes diarrhoea. Links should be made with earlier work on osmosis. Common misunderstandings and misconceptions ◆
There are no common problems with this topic.
Homework ideas ◆ ◆
Coursebook questions 7.24 and 7.25 Workbook exercise 7.4 Cholera patterns in Bangladesh
Original material © Cambridge University Press 2014 © Cambridge University Press 2014
IGCSE Biology
Chapter 7: Teaching ideas
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