The impact of COVID-19 on the higher education sector was immediately disruptive. However, university instructors of computational physics met these unexpected challenges head on, delivering complex content to students in innovative ways. Now, we have the opportunity to reflect on what has worked and what has not in order to strengthen our community’s ability to deliver world-class education to the next generation of computational physicists. Lessons Learned in Lockdown will bring together lecturers, instructors and higher education professionals who have been involved in teaching numerical or computational physics in the face of COVID-19 disruptions. Jointly hosted by the IOP Higher Education and Computational Physics groups, the event will serve as a forum to exchange experiences and discuss lessons learned, as well as identify opportunities to advance the ways we teach numerical techniques to physics students. This online event is scheduled for 14th April 2021. Abstracts are requested for short talks, interactive workshops and posters presenting student work e.g. project work.