KS2 - what do children need to know for each level and sublevel?

[AnneOfCleavage]

Just that really. DD seems to have plateaued on the same level in one subject for a while now and actually gone down a sublevel in another subject (didn't think it was possible). Reports only just given out and school now broken up for Easter so I would like to help DD (age 9) over the holidays with some extra prep.

Hope someone can help

Google APP grids. These give detailed information for each level for reading, writing and maths.

You might need to sign up to TES to get the more detailed sublevel criteria within each level.