Teaching ideas Chapter 14
Homeostasis
Syllabus section covered: 14.4
Teaching resources Syllabus section 14.4
Topic Maintaining the internal environment; control of body temperature
40-minute periods
Resources in Coursebook
Resources in Workbook
Resources on this CD-ROM
3 to 4
Activity 14.1 Experiment to investigate the effect of size on rate of cooling
Exercise 14.1 Endotherms and ectotherms
Worksheet 14.1 Keeping warm
Activity 14.2 Investigating the effect of evaporation on the rate of cooling
Worksheet 14.2 Surviving hypothermia
Questions 14.1 to 14.6 EOCQ 3 14.4
Control of blood glucose concentration
2
EOCQs 1, 2, 4
Exercise 14.2 Diabetes
Topic 1
Maintaining the internal environment; control of body temperature
Coursebook sections 14.1, 14.2 Teaching ideas ◆
A quick quiz testing students’ understanding of the difference between heat and temperature could be helpful to you – it is worth checking what they have learnt about these concepts in physics lessons. ◆ Students may have used the term ‘cold-blooded’ to describe animals such as reptiles or fish. Ask them what this means, and guide the discussion towards the concepts of endotherms and ectotherms. (Note that the syllabus does not require them to know these terms, however.) ◆ Skin structure can be taught using a model, as well as projecting images of microscopic sections. ◆ Activity 14.1 Experiment to investigate the effect of size on rate of cooling, may have been done by students at an earlier stage, or in physics lessons. Activity 14.2 Investigating the effect of evaporation on the rate of cooling, asks students to build on this to plan their own experiment.
Original material © Cambridge University Press 2014 © Cambridge University Press 2014 IGCSE Biology
Chapter 14: Teaching ideas
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