8.4 t3a graph starter

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8.4 t3a graph starter

  1. 1. Mobile phone tariffs total costs for 600 minutes per month£50.00£40.00£30.00£20.00£10.00 £0.00mhnoTscyatl 1 Write down three pieces of information that this graph tells you. 2 Which tariff would you prefer?
  2. 2. Mobyphone mobile phone model Enter minutes 300 Enter number 100-600TARIFF OPTIONS(monthly) Monthly Free Extra Minutes Cost for extra Total cost cost minutes minutes used minutesTalk 15 £10.00 15 £0.06 300 £17.10 £27.10Talk 30 £12.50 30 £0.05 300 £13.50 £26.00Talk 45 £15.00 45 £0.04 300 £10.20 £25.20Talk 60 £17.50 60 £0.03 300 £7.20 £24.70Timefree Talk £30.00 0 £0.00 300 £0.00 £30.00Pay As You Go £0.00 0 £0.08 300 £24.00 £24.00
  3. 3. Mobile phone tariffs £50.00 £40.00 £30.00 Total cost £20.00 £10.00 £0.00 Minutes used100 200 300 400 500 600 Talk 15 Talk 45 Pay as You go
  4. 4. Learning outcomesAll students will be able to develop ICT-based models and testpredictions by changing variables and rules.Most Students will be able to develop ICT-based models and testpredictions by changing variables and rules and be able to say whythere prediction was right or wrongSome Students will be able to develop ICT-based models and testpredictions by changing variables and rules and be able to say whythere prediction was right or wrong and elaborate on how they couldadapt it to make it better.
  5. 5. Possible advantages of using ICT to produce graphical representations of dataO Automatically produces a key, a title and labels for the axesO Easily produces graphs that are visually appealingO Allows you to try and to investigate different types of graphO Graphs can be changed automatically as data changesO Produces graphs very quicklyO Allows scales to be changed easily
  6. 6. Possible disadvantages of using ICT to produce graphical representations of dataO It is too easy to use the wrong kind of graphO The most visually appealing graph is not necessarily validO Automatic rescaling can lead the unwary into false conclusions
  7. 7. Possible disadvantages of using ICT to produce graphical representations of dataO It is too easy to use the wrong kind of graphO The most visually appealing graph is not necessarily validO Automatic rescaling can lead the unwary into false conclusions

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