This Fourth Edition of Derek Haylock's much loved textbook has been fully revised & restructured to match the current Attainment Targets for mathematics in Engl&. Every chapter is written in a way that integrates children's learning classroom practice & the teacher's own requirements for subject knowledge making this the ideal text for primary PGCE courses. Some of the changes in the new edition include: two new chapters on mathematics in the primary curriculum & learning to learn mathematics; more prominence given to using & applying mathematics; sections matching the attainment targets for mathematics; more learning & teaching points highlighted throughout the text; further material on number risk use of ICT graphs & data-handling; a research focus in every chapter. The companion website provides a glossary & additional material to enable primary trainees to prepare with complete confidence for the ITT Numeracy test & provides details of how each chapter of the book is linked to the National Curriculum. This will be updated to reflect any updates to the National Curriculum as they are introduced. Extensively used on primary PGCE courses & undergraduate courses leading to QTS this bestselling book is an essential resource for all trainee primary teachers. A companion Student Workbook is also available which: provides self-assessment activities for students to check their understanding of key concepts; helps students to practise key mathematical processes & to apply mathematics in real-life situations; & gives opportunities to apply their knowledge to teaching & learning.