activity ideas for older children?

[cheesey]

Hiya.
I need some help. I have always worked in secondary schools but die to family commitments had had to move and there is only primary work available to me. I have an interview on monday and have to do a mark making activity with 6 year 1 children to assess the childs attainment and develop the next steps. Im totally new to this and seriously need some help and advice on what sort of activity i should do. All teh ones I have come up with are for fs1-2 stage.