A lot must be considered when teaching indoors safely this year. If the concern is a constant strain, mix it up. Get outside on a nice day you see in the forecast; tell the students a change in scenery is in store for them. Plan and prepare to do a lesson outside. Deep breathes, sunshine, and shade will at first be something to get used to, but as time goes on it will normalize.
If you are teaching remotely, talk to your administration about a field day. Something the students can gravitate to and be attentive on-line to get rewarded with seeing classmates in person outside.
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