Foreword - Brazil Delta 2017: the romantic path of mathematics

This thematic collection draws together the six papers finally selected for publication from 23 full-paper submissions for the Brazil Delta Conference, the 11th biennial conference on the teaching and learning of undergraduate mathematics and statistics, which took place in Gramado, Brazil from the 26th November to the 1st December 2017. This marks the second time the group of passionate undergraduate mathematics education professionals have met in South America under the Delta symposia umbrella, the first being the sixth Delta ’07, held in the World Heritage Los Glaciares National Park in Patagonia, Argentina. The other nine conferences in the series have been held variously in Australia (1997; 1999; 2005; 2013), New Zealand (2003; 2011) and South Africa (2001; 2009; 2015). This collection also marks the sixth time selected papers from the conference have been published as a special issue of the International Journal of Mathematical Education in Science and Technology (iJMEST), and the first time this has been published as an Open Access (OA) Supplement Issue. We acknowledge the continued support of the Editors and publishers at iJMEST and Taylor and Francis for extending the dissemination of our Delta community’s scholarship and research. More about the Delta network, including links to papers from each year’s Proceedings (the papers published separately to the special iJMEST issue), can be found at http://www.deltaconference.org/.