Don't worry little bear!
Here is a story to read to your children, to help with why they are not able to come to school at the moment:
https://www.earlyyearsstorybox.com/corona/?fbclid=IwAR32EkBvEwXAz4s34qNHxfCJIFD57vxC2n1fQf4ampALfPiZCq2tayRjHVg
Can you talk to your child about how they feel about not coming to school?
Can you talk to them about how that feeling is ok?
Tell them, Miss Gray and Miss Watson will be sending lots of nice games and activities to do at home.
Can your child draw a picture of what they like doing at Nursery and at home?