By School Mathematics Project
By Shepperd, C.J., J.A.H.
By Rouncefield, Mary, Sherran, Peter
By CGP Books
By Thornton, Margaret, Lomax, Steve, Manning, Andrew, Sherrington, Chris, Willis, Mark, Haworth, Anne, JOHNS, Jan, Haighton, June, Metcalf, Paul
By Appleton et al
By Haighton, June, Haworth, Anne, Lomax, Steve, Manning, Andrew, Scott, Kathryn, Sherrington, Chris, Thornton, Margaret, JOHNS, Janice, Willis, Mark, Metcalf, Paul
By Andrew Brodie
By Mark Patmore
By Keith Pledger, Graham Cumming, Kevin Tanner, Gareth Cole, Michael Flowers, Rob Summerson, Julie Bolter, Rob Pepper, Joe Petran, Karen Hughes, Peter Jolly, Jean Linsky, Brian Western, Graham Newman, Joan Knott, Gillian Dyer, Pledger, Keith
By Linsky, Jean, Goldie, Sophie
By Stebe, Mills, et al
By Ollerton, Mike, Watson, Anne
By Byrd, Greg
By Ellis, Rob, Hipkiss, Kath, Stobart, Colin
By Greenaway, B.R.
By Merttens, Ruth
By Mark Patmore, Patmore, Mark
By Cooper, Richard, Armer, Shirley, Burville-Riley, Mark
By Sherran, Peter, Various Authors
By Otto Treptow, John Morris
By Scottish Primary Mathematics Group
By Bell, Mr David
By SSMG
By Kerslake, Daphne, etc.