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Remote Ready Biology Learning Activities has 50 remote-ready activities, which work for either your classroom or remote teaching.
Scientific American resources on coronavirus
There is a great deal of useful information in the links in a message from Scientific American (http://links.email.scientificamerican.com/servlet/MailView?ms=NjcyNDMxMjUS1&r=NDUxOTY3MDAwMzMxS0&j=MTkwNDQzOTM3MwS2&mt=1&rt=0). I particularly enjoyed Inside the Coronavirus (the first link in that source).
Ingrid