I’m interested in the psychological mechanisms relating language and mathematical cognition. In particular I’m interested in the effects of Developmental Language Disorders (DLD) on the children’s numeracy. A study funded by the Nuffield Foundation (Donlan et al. 2007) found that eight year olds with DLD face challenges in the development of number knowledge (rote-counting and transcoding from spoken to Arabic numerals), but are relatively advantaged in conceptual understanding (application of arithmetic principles). More recent work demonstrates the importance of transcoding as a key element in the development of arithmetic skills in typically developing children (Habermann et al. 2020). We are currently working on a game-based intervention to support this foundational aspect of numeracy, focussing on children with language difficulties, and on with people with Aphasia who face challenges in re-building number knowledge. Funding for this study is once again provided by the Nuffield Foundation.