Can anyone tell me how we translate KS2 attainment grades into KS3 predictors? I know a level 5 at KS2 does not translate into a level 5 in year 7 or KS3. We used to have various formulas that we could use in my old LEA and we did CATs testing. I'm working overseas and we have neither. I'm in charge of making sure year 7's stay on track in Science and am not entirely sure I can make a good judgement about where the kids are supposed to be. Any advice gratefully appreciated.