As a long-standing member of the AlphaPlus Consultancy, Jenny Lawson has devised many online tests for trainee teachers. Alongside her teaching and examining career, she has authored, and been the series editor for, numerous texts for ICT and mathematics from KeyStage 1 through to A Level and GNVQs. Now retired from full time teaching, Jenny focuses on her own writing and also offers mentoring for writers wanting to be published.

Trish Kreft has over 35 years' experience of teaching and managing mathematics and teacher education in a variety of settings, including schools, further education, adult and community learning and university. Since 2006, Trish has been running her own training company as well as working as an independent consultant in mathematics teacher education, guidance and quality assurance.