By Nick Tiley-Nunn, Phil Beadle
By Crawshaw, Janet, Gordon, Keith, Hirani, Karim
By Abram, John, Lewis, David, Swords-Shannon, Oliver, Tyler, Ken
By Abram, John, Lewis, David, Murphy, Antonia, Royston, Angela, Swords-Shannon, Oliver
By Childs, Roy
By Pinel, Adrian
By Firth, Peter
By De La Bedoyere, Camilla, Cattermole, John
By Stephen Bell, Peter Brown, Steven Buckley, Bell, Stephen, Brown, Peter, Buckley, Steven
By SPMG, Scottish Primary Maths Group
By Hughes, Shirley
By Pearce, Chris
By Matthews, Jean, Baxter, Howard, Patmore, Mark, Jeskins, John, Handbury, Michael
By Pat Bryden, Cliff Pavelin, Bryden, Pat, Pavelin, Cliff
By King, Sue
By Steve Mills, Hilary Koll
By Igloo Books
By Atkinson, Ruth, Campling, Jayne, Tacon, Romey, Wing, Tony
By Mathematics in Action Group
By Gold Stars
By Broadbent, Paul
By Anon