Proceedings of the Day Conference of the British Society for Research into Learning Mathematics (BSRLM) held at the University of Brighton, Brighton, Saturday 12th November 2016. Issue 3 (2nd September 2017) - Akkoç, Hatice; Bokhove, Christian; Redhead, Edward; Borthwick, Alison; Harcourt-Heath, Micky; Gülbağcı-Dede, Hande; Akkoç, Hatice; Ingram, Jenni; Andrews, Nick; Küchemann, Dietmar; Hodgen, Jeremy; Rogers, Leo; et al.