This fourth issue of ASE International features the usual mix of original and pre-published articles.  In this issue we have an article on citizen science and how globally this is enhancing science teaching and learning. We also have a piece on the Public Health England e-Bug teacher training initiative, and two articles on women in science, one primary and one secondary. Articles on drama in science and teaching energy as part of education for sustainability complete the issue, together with news from our partner, Gratnells, and updates on two international conferences.