Card sorts can be used to quickly assess student understanding. The author has modified two card sorts on photoelectron spectroscopy and intermoleculer forces for use either remotely or in a paperless classroom.
With millions of teachers and students facing remote-learning because of COVID-19, a global experiment may be a great way to engage students at home.
ChemEd X will keep a running list of tips and ideas for remote / online instruction as long as COVID-19 keeps schools closed. We hope you will comment below if you have something to share that you don't already see here. Check back as this is a work in progress.