AfL: Mathematics resources - Assessment for Learning from the QCA.
Assessment for learning: using assessment to raise achievement in mathematics at key stages 1, 2 and 3 - (QCA, 2003).
The Basic Skills Agency - Currently, our priorities are: Improving the speaking and listening skills of children, young people and adults; Improving basic skills at transition points in a child´s, young person´s or adult´s life; Engaging disengaged children, young people and adults in improving basic skills.
The National Research and Development Centre - (NRDC) is a consortium of partners, led by the Institute of Education. It was established by the DfES as part of the Skills for Life Strategy (the national strategy for improving adult literacy and numeracy skills).
QCA - This page provides links to information about QCA’s work in mathematics.
QCA Mathematics 5-14 - You can browse the mathematics statutory Order information on the National Curriculum Online, or search for examples of work on National Curriculum in Action.

Internet Mathematician - an online tutorial designed to help students, lecturers and researchers improve their Internet information literacy and IT skills...There are quizzes and interactive exercises to lighten the learning experience.
MegaConverter A set of weights, measures and units, plus conversion/calculation modules.
NRICH Maths Project Extracurricular mathematics and ideas to help teachers run maths clubs.
SURFSTAT australia - full text of an introductory statistics book.