By Bateman, Rob, Lidstone, P.
By Perring, Richard
By Servais, W.
By School Mathematics Project
By Edmondson, Andrew
By Sykes, John, Smith, Alan
By Williams, K., Williams Ph.D., David
By Pascoe, L.C.
By Kropko, Jonathan M.
By Hochstadt, Harry
By PIPER & MURPHY, Piper, Fred, Murphy, Sean
By Amery, Heather, Livingstone, Malcolm
By George G. Szpiro
By David Sargent, Lynne Graham
By Bond, J. M.
By Anon
By Poustie, Jan
By Now National Writing Gro, Maths
By Cassell, David
By Graham, Alan T.
By Chris Humble, Fiona McGill, Humble, Chris, McGill, Fiona
By Noonan, Jim, Bevis, Terry, Cain, Gay, Martin, Brian, Mitchell, Christine, Powell, Robert, Wood, Gwen
By O'Meara, David
By Askew, Mike, Hodgen, Jeremy, Hossain, Sarmin, Bretscher, Nicola
By SPMG, Scottish Primary Maths Group