I am studying for the MTL and have just written a report on peer assessment. I have used attainment grades to show the progress made by pupils (3B, 4C etc). I have been asked to show the levels as numbers so these can be put into a graph. Can anyone help with this? I have only ever been aware of the sub levels being A, B or C. I presume they mean 3B would be 3.5 or something similar. What are A and C as decimals?