By School Mathematics Project
By Abbey, Sally, Pointer, Lynne, Easterbrook, Trevor
By McDaniel, Yvette
By Carol Vorderman, Vorderman, Carol
By Mills, Steve, Koll, Hilary, Barber, Tina
By Patilla, Peter
By Pluckrose, Henry, Fairclough, Chris
By Neill, Hugh, Quadling, Douglas
By Rick Walton, Walton Rick, Jabar Cynthia
By Bryant-Mole, Karen
By Hugh Neill, Paul Abbott, Neill, Hugh, Abbott, Paul
By Nieuwenhuis, Gert
By Cole, Mr Harvey, Sang, Mr David
By Scottish Primary Mathematics Group, Matthews, Bethan, etc.
By Griffiths, Rose
By Hopkins, Liz
By Fisher, Robert, Vince, Alan
By Owen, Annie
By SPMG, Scottish Primary Maths Group
By Prim-ed Publishing
By Cowie, Leonard
By Howard Thomas, Thomas, H
By H. Thomas, Thomas, H