David Hanson has more than 40 years’ experience teaching. He has been a member of the ISEB 11+ and 13+ mathematics setting teams, and was, for a time, leader of the 11+ team. For many years he edited the SATIPS Maths Broadsheet and contributed to and/or organised conferences for SATIPS and IAPS. David has retired from teaching but maintains his interest in education. David is the author of our 11+ mathematics workbooks. Mathematics Workbook Mental Arithmetic Age 8-10 Mathematics Workbook 10-Minute Maths Tests Age 8-10 Mathematics Workbook Mental Arithmetic Age 9-11 Mathematics Workbook 10-Minute Maths Tests Age 9-11 David is also the author of our 13+ mathematics revision range. Mathematics for Common Entrance 13+ Revision Guide Mathematics for Common Entrance 13+ Exam Practice Questions Mathematics for Common Entrance 13+ Exam Practice Questions Level 3 Mathematics for Common Entrance 13+ Exam Practice Answers Mathematics for Common Entrance 13+ Exam Practice Answers Level 3 Common Entrance 13+ Mathematics Revision Guide Common Entrance 13+ Mathematics Exam Practice Questions and Answers