With the introduction of the new National Curriculum in Septemebr 2014, this year we are introducing new assessment processes.
We are using a system called "Target Tracker" to record attainment and track progress from Years One to Six for Reading, Writing and Mathematics. 
Target Tracker has set out statements from the national curriculum into six bands.  The statements show what a child is expected to have learned at the end of each academic year.  For example, children in Year Six would be expected to have mastered the statements in Band 6.  Every child, however, is individual and some will be progressing at different rates.   Some children will therefore be above or below the band for their year group.
To support parents, we are producing materials that show the bands for Reception and Nursery, plus the six bands for Target Tracker.  We have started with writing and will add mathematics and reading soon.