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Science at key stage 3    (Year 9)

Unit 9B: Fit and healthy
Section 1: a. What do we mean by fit?

QCA

Objectives
Children should learn:
  • to relate fitness to the systems of the human body
  • that 'fitness' is different for different individuals

Activities

Outcomes
Children:
  • Ask pupils what they understand by the term 'fit' and how they might go about finding out if they are fit. Discuss how fitness means different things to different people, relating this back to work in unit 8C 'Microbes and disease'. Ask what a fitness programme might deal with, eg exercise, diet, smoking, alcohol, and establish that these relate to the functioning of the human respiratory, digestive and circulatory systems and skeleton and joints.
  • Ask pupils to carry out simple activities to measure aspects of fitness, eg running on the spot, or steps, for 30 seconds and monitoring the return of pulse and breathing rates to resting level using datalogging equipment; fat callipers on upper arm; pressing a set of bathroom scales with arms raised to measure muscle strength.
  • identify aspects of fitness and describe how fitness might differ in different individuals
  • describe ways in which fitness relates to some of the body systems

Points to note
  • Teachers will be aware of the need to be sensitive to the circumstances of individual pupils and their families, and the need to encourage pupils to be sensitive to differences between them.
  • Pupils could be asked to provide their own examples of advice on fitness from newspaper/magazine articles, fitness and leisure centres, etc. Some examples that consider the fitness of disabled athletes would be useful, eg information provided by www.kidshealth.org

    • Safety

    • the needs of pupils with specific medical conditions, and those excused from PE, should be considered when deciding if they should take part. Suitable shoes should be worn, and benches/steps should be held firm. Over-competitiveness should be avoided

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