It presents information on reading and numeracy attainment changes over time, with the addition of analysis by sex and also the gap between pupils eligible for free school meals and their peers.
cymharu data rhwng dosbarthiadau ac adrannau pwnc, gan helpu i nodi amrywiadau o fewn yr ysgol yng nghynnydd dysgwyr a lle mae rhannu arfer da yn bwysig