Having an extra number in basic maths is not enrichment - it is extra work. Strangely teachers can't see that repeating the same steps extra time and/or faster is not fulfilling for the child. Ds9 told me after one year doing maths extension that it was horrible. Some of the scores drop will be the other kids catching up as they are helped to advance while your dd and other kids who scored high are not. The top kids progress at about 2/3 speed and the lower at as fast as they can be pushed. This means they can claim "they all even out by 3rd grade". Buy Beast Academy and after school.