OP your employer can legally furlough you.
If your dc are R, 1 or 2, just read to them, talk about stories, the colours in their books, mix colours with their paints and do potato printing.
Get them to count out Penne, put it in 10s, decide who can eat how many. Do halves and quarters with orange satsumas and green apples. Get them to count the plastic bottles into the recycling. When mine were little I once worked out the following:
Arrive at school at 8.55, 10 mins on coats, wellies and lunchboxes, 20 mins on register and getting them to the hall for assembly at 9.25. Back to the classroom at 9.50, 10 mins settling them down. About 45 mins of literacy until 10.45. 15 minute playtime. 11am fruit and milk time (pick it up off the carpet Peter). 11.15ish probably some phonetics until 12ish. 12ish lunch, 12.30 to 1 playtime. 1 to 1.15 settling down time and register. 1 15 to 2ish, PE or Art or reading to a volunteer. 2pm to 2.15 some sort of chat about beasts, 2 20 to about 2.40 playtime - 10 minutes settling down time - story time something to share time. Actual teaching time about 90 mins max. 90/30 = 3 mins per child. It exhausts me just thinking about it and the poor children who may be neuro diverse and find chaos difficult. I take my hat off to the teachers but I couldn't do it and wouldn't want to.
Just think of the impact you can have on your child's learning in 3 x 10 minute quiet and dedicated bites.
You can do it.