By School Mathematics Project
By School Mathematics Project, Higgo, John, Roder, Paul, Tall, David, Wilson, Thelma
By G.H. Hardy, g-h-hardy
By Press, William H., Flannery, Brian P., Teukolsky, Saul A., Vetterling, William T.
By Lyons, Louis
By Press, William H.
By SPMG, Scottish Primary Maths Group
By Straker, Anita
By Phillips, Richard
By Secada, Walter G., Fennema, Elizabeth, Adajian, Lisa Byrd
By Westfall, Richard
By Etheridge, Alison
By Bolt, Brian
By Harrison, Paul, Mumford, Jeanette
By Dobbs, Steve, Miller, Jane
By Miller, Jane
By Quadling, Douglas, Neill, Hugh, Douglas Quadling, Hugh Neill
By Neill, Hugh, Quadling, Douglas, Quadling, Douglas
By Quadling, Douglas, Neill, Hugh, Douglas Quadling
By Quadling, Douglas
By Gardiner, Tony