Book excerpt: Purpose: To help teachers understand the maths performance of dyscalculic pupils and detail teaching strategies and practical activities through which they can best be supported in their maths learning. Benefits: Offers a definition of dyscalculia; Gives guidelines for helping dyscalculic pupils in the classroom; Provides teaching strategies to help pupils make progress in maths learning and specific practical activities for use in the classroom; Is underpinned by an understanding of the emotional well-being of dyscalculic learners; Provides the next crucial steps once dyscalculic tendencies have been identified; Is from the UK's expert in dyscalculia, providing a detailed explanation of the condition to aid teachers' understanding of the issue; A highly experienced classroom practitioner provides teachers with specific strategies and activities to improve pupils' progress in maths.