Maths Discovery (Nippy Numbers) is a multi-sensory programme for the teaching of numeracy, based on the innovative work of Professor Sharma, University of Boston, U.S.A. It is suitable for first-time, slow-to-start, dyslexic and dyscalculic students of all ages, including adults. Available from: www.syntheticphonics.net/

Kumon Maths.
http://www.kumon.co.uk This programme uses work sheets to be completed at home, available by correspondence or through weekly support classes. It uses a step-by-step approach which is helpful for some children. The course is designed for work to be done everyday including weekends and holidays - check that your child is willing to do this. N.B. Kumon English is NOT recommended.

Maths Dictionary. Robson. Pub. Newby Books. Very inexpensive, suitable for revision of basic mathematical knowledge. Uses easy-to-understand language and simple diagrams.

The Secondary Maths Handbook: laying the foundations for good mathematics. Medcalf. Pub. Maths Press.
KS3 -adult. Designed for independent use by pupils at home.

www.powerof2.co.uk Two books by David Sharp: Plus 1: an introductory maths coaching system. Power of 2: basic mental maths using one-to-one coaching, for age 7+. Uses a similar tick-box marking system to that in Toe-by-Toe.

http://www.powerof2.co.uk/perform-time Book, 'Perform Time' from David Sharp, dealing with all aspects of time.