- Review with pupils ways in which quality of air and/or water is monitored or controlled and ask them whether they think there is more pollution,
eg of air or of water, now than there was at a specific time in the past. Ask them to suggest the basis for their answers and then to think what evidence might be collected,
eg photographs, public records, paintings, individual medical records showing outbreaks of disease, descriptions of domestic and working environments, Clean Air Act and other legislation. Consider a selection of available evidence and compare it with today's evidence. Ask pupils to decide whether the evidence is good enough to come to a firm conclusion, and to explain their decisions.
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- identify and evaluate sources of information about the past,
eg photographs of city centres, contemporary descriptions of domestic/urban/rural life
- identify and evaluate sources of information about the present,
eg local and national monitoring records, media reports
- identify and describe differences between evidence from the past and present-day evidence
- explain the strengths and weaknesses of present-day and past evidence
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