By Hony, Viv, Turner, David, Oakley, K, Lane, P
By Macdonald, Alan, Remphry, Martin
By McCaughrean, Geraldine, King, Carolyn
By Hunt, Roderick, etc.
By Edel Wignell, Rose Inserra, Annette Smith, JENNY GILES, Jan Weeks
By Randell, Beverley
By Scottish Primary Mathematics Group
By Smith, Viv
By Royston, Angela
By Bull, Ron, Miller, Jim, Newman, Graham
By Scottish Primar, M, Scottish Primary Mathematics Group
By Ruth Merttens, David Kirkby
By Mark Wilson
By Giles, Jenny
By SSMG
By SPMG, Scottish Primary Maths Group
By Scottish Primar, M, scottish-primary-mathematics-group, Scottish Primary Mathematics Group
By Neate, Roberta, Murphy, Ronald, Palmer, Sue
By Catherine Chambers, Chambers, Catherine, Heweston, Nick, Baker, Julian, Janet
By Hibbert, Clare
By Naylor, Brenda, Stuart, Mitchell, Ged
By Chris Oxlade
By Bennett, Paul
By Louise Spilsbury, Richard Spilsbury
By Bellamy, Rufus
By Dunbar, Joyce, J.
By Parker, Steve
By Wiegand, Patrick