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Remote Ready Biology Learning Activities has 50 remote-ready activities, which work for either your classroom or remote teaching.
Copper sulfate
I would have liked for Paul's lesson to have been rooted in some context. What is the important context for finding out that cooper sulfate has water in it? I think of inquiry being grounded in the pursuit of some deep understanding. What is the deeper understanding that we were pursuing through this lab? Perhaps Paul could enrich his lab by tying it in to other things and ideas the class had already pursued, or by linking bit back to a larger question they were investigating.