Monograph 2020 - front cover0 Alf Coles Editorial2 Richard Barwell Learning mathematics in time and space ABSTRACT 3 Tracy Helliwell ,  Julian Brown Seeing more, seeing differently as mathematics teacher educator researchers ABSTRACT 9 Alf Coles Communicating ‘nots’: a journey in mathematics education ABSTRACT 15 Olive Chapman Mathematics teacher educators’ use of narrative in research, learning and teaching ABSTRACT 21 Merrilyn Goos The learning and development of mathematics teachers and mathematics teacher educators: from there to here to where? ABSTRACT 28 Peter Sullivan ,  Janette Bobis ,  Ann Downton ,  Sharyn Livy ,  Sally Hughes ,  Melody McCormick ,  James Russo Ways that relentless consistency and task variation contribute to teacher and student mathematics learning ABSTRACT 32 Salvador Llinares Indicators for the development of noticing: how do we recognize them? ABSTRACT 38 David Reid Learning to teach a mathematical emotional orientation ABSTRACT 44 Brent Davis Number work: teachers as experts who can think like novices ABSTRACT 49 Laurinda Brown Bringing forth worlds55 David Pimm Afterword: a coda59 - Contributors61