By Ian Atkinson
By Roy Edwards, Jean Clark, Alice Dickson, Barbara Hewett, Barbara White
By David M. Smith
By Leslie F. Musk, Musk, Leslie F.
By School Mathematics Project
By Timothy P. Bayliss-Smith, Bayliss-Smith, Timothy P.
By Ann Walker, Walker, Ann
By Susan Owens, Peter L. Owens, Owens, Susan, Peter L.
By Stephen Bell, Peter Brown, Steven Buckley, Bell, Stephen, Brown, Peter, Buckley, Steven
By Roland Soper, David Sparks, Soper, Roland, Sparks, David
By Roy Edwards, Mary Edwards, Alan Ward
By Colin Goldsmith, David Nelson, School Mathematics Project
By Brian Bolt, Bolt, Brian
By Mike Savage, Julian Williams