Recommended External Resources Interesting videos from Daniel Ansari on his research on developmental dyscalculia. A wealth of resources for learners with dyslexia and dyscalculia from the British Dyslexia Association. Many good books (including mine) on learning difficulties and education published by Sage. Brian Butterworth’s book ‘The Mathematical Brain’ is full of interest and insights. Ideas for helping students improve their working memory, from Tracy Alloway and Susan Gathercole. Cuisenaire rods, from The Cuisenaire Company.