I teach a year 7 foundation group in a Secondary school. The single biggest barrier to acheiving in Maths is their lack of basic numeracy skills. So often in their assessments they have understood the process of something, but their adding, subtracting and times table work has let them down. They are mixed ability levels going from a 2a to a 4a. I have to follow the scheme and I have being going through a numeracy booklet with them the other lesson but they still struggle with the basics. Any suggestions gratefully received.