- Discuss ways in which measurements of environmental data are taken in a range of everyday situations, eg weather forecasting, central heating, thermostats.
- Discuss the difficulties experienced when manually recording data. Identify the need for a system to record data.
- Identify difficulties encountered when collecting data over very short or long periods of time and discuss different ways in which data can be recorded, eg tables and graphs.
- Compare methods of presenting data where a variable changes over time in different formats (numbers, graphs). How can we use the computer to do this?
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- develop awareness of some of the problems faced by scientists in collecting data
- learn that a line graph may be more illustrative of gradual change over time than either tables or bar charts
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