In this insightful volume, more than 50 educators from 4 continents outline thoughtful and intentional innovations of lasting value made in their teaching of tertiary mathematics and statistics, in response to COVID -19 pandemic-related campus closures. The examples given in 20 practical chapters fall into three themes: utilization of relevant technologies, discipline-appropriate assessment alternatives, and support for learning and engagement.

The first theme explored is the utilization of the affordances of communications technology and mathematical software and online tools, to create learning resources and activities for virtual classrooms. The second theme is the design of sound assessment alternatives, together with the associated issue of maintaining academic integrity, in disciplines accustomed to established question styles and face-to-face exams. Finally, a range of activities to encourage engagement and support learning and teaching, both online and as campuses re-opened, is described. Due to their ongoing relevance and benefits for tertiary mathematics education, be that of pre-service teachers, engineers or mathematics majors, the examples found in these 20 practical chapters are 'takeaways' or 'keepers'. This book was originally published as a special issue of International Journal of Mathematical Education in Science and Technology.