There’s lots of things you can do with your kids, we could use this thread to think of practical ways to occupy them. This will last months so having a plan is going to help with some of the frustrations.
Hegarty maths (so my teacher buds tell me) for GCSE maths. Also you can download past papers (mark schemes should be with them). Same with GCSE English papers.
History (I’ve taught year 7 and 8) this is a good resource www.theschoolrun.com/the-parents-guide-to-secondary-school-ks3-history
Maybe other teachers can share tips 😊