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Science at key stage 3    (Year 9)

Unit 9B: Fit and healthy
Section 12: Are we healthier than our great-grandparents were?

QCA

Objectives
Children should learn:
  • to ask different sorts of questions to extend thinking and refine ideas
  • to identify what information is needed, then use different sources
  • to evaluate conflicting evidence to arrive at a considered viewpoint

Activities

Outcomes
Children:
  • Ask pupils to consider the question and to suggest how it could be turned into further questions that could be investigated and the sources of information that might be used. Agree, with the class, questions that individuals or groups could investigate and the sources of data each might use. Discuss, eg as a debate, the evidence for and against the idea that we are healthier than our great-grandparents were, helping pupils to identify the key points and to evaluate the strength of conflicting evidence.
  • produce supplementary questions relating to different aspects of an original question
  • assemble evidence to answer the question
  • decide whether the evidence supports or does not support the idea, and give reasons for their decision

Points to note
  • In unit 8C 'Microbes and disease' pupils considered infectious diseases, and in this unit they have considered influences of lifestyle on health. They may need to be reminded that there are many other types of illness and that the cause of many of these is not yet known.

Sections in this unit

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This unit is divided into sections. Each section contains a sequence of activities with related objectives and outcomes. You can view this unit by moving through the sections or print/download the whole unit.
1. a. What do we mean by fit?
2. b. What do we mean by fit?
3. What helps the respiratory system to function?
4. What is the effect of smoking on the lungs and other body systems?
5. a. Why is diet important?
6. b. Why is diet important?
7. How does alcohol affect the body?
8. a. What else can we do to maintain fitness?
9. b. What else can we do to maintain fitness?
10. a. What effects do drugs have?
11. b. What effects do drugs have?
12. Are we healthier than our great-grandparents were?
13. Reviewing work