By University of York Science Education Group, Nuffield Curriculum Centre
By Raitt, Gordon
By Jones, Geoff., Mary Jones, Phillip Marchington and David Acaster., Geoffrey, Mary, Marchington, Phillip, Acaster, David, Phillip Marchington and David Acaster. Jones
By Geddes, Marion, Sturtridge, Gill, Nuttall, Christine, Browne, S N
By Doff, Adrian
By Gower, Roger, Walters, Steve
By School Mathematics Project
By Rinvolucri, Mario
By Hurd, Stella, Murphey, Linda
By Maley, Alan, Duff, Alan, Grellet, Frangoise
By Jones, Leo, Alexander, Richard
By Maley, Alan, Duff, Alan, Grellet, Françoise
By Collins KS3
By White, Alan, Bloomfield, Adam, Leonard, Angela
By Chadha, Gurinder, Chadha, Gurinder
By Handbury, Mike, Patmore, Mark, Jeskins, John, Matthews, Jean, Baxter, Howard