By Schofield & Sims, Steve Mills, Hilary Koll
By Soper, Sandra
By Clarke, Peter
By Richard Cooper
By -
By Hodge, Paul
By School Mathematics Project
By David Glover (Rutgers University), Tim Hutchinson (Larkmead Veterinary Group, UK)
By Gareth Moore, Chris Dickason
By Nash, Jenny
By Richard Cooper, Cooper, Richard, Burville-Riley, Mark
By Murphy, Stuart J., O'Malley, Kevin
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By Dickinson, Paul, Hough, Susan, Eade, Frank, Gough, Steve, Dudzic, Stella
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By Prim-ed Publishing, Prim-ed Publishing
By Kirkby, Dave, Roper, Chris
By Letts KS1