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AQA precipitation ISA

Discussion in 'Science' started by found nemo, Jun 29, 2010.

  1. ScienceGuy

    ScienceGuy Occasional commenter

    If we were aiming to get a line graph plotted then yes. We decided that for our core science ISAs we would design them, where possible, to have a categoric or ordered variable so the pupils can plot a bar chart. Having looked through the guidance again, there is nothing that gives a minimum number of values for the independent variable.
    The only problem we have had with our methods has been that we have ended up with marks that have been very difficult to award - question 1b on the precipitation ISA confused nearly every pupil who took it as we used technician made solutions.
     
  2. blazer

    blazer Star commenter

    In the mark schemes doesn't it say that they are allowed 1 mistake in 5 when plotting the points/top of bars on the graphs?
     
  3. Did no one do the reaction times ISA from the first set where the independent variables were 'left' and 'right' hands? I think this was suggested by AQA and made for a very dull bar graph!
     
  4. naggin the nag

    naggin the nag New commenter

    It could be worse - you could be doing the biology A-level ones!!
     

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