(I'm a science teacher)
We're not doing any live or video lessons. We're setting 5 lesson a fortnight that are based on links to information and videos, with tasks to complete independently. We can be contacted by email to help (hopefully moving to using teams but set up is taking time) .
They then have a set task that will be marked and feedback given. Our syllabus for combined is 6 modules per science (B1-6, C1-6, P1-6) Year 9 normally get through all the 1s and 2s and B4.
Because not all classes work on the same module at the same time when we 'finished' they had all done all the 1s and half the 2s, but different 2s if you see what I mean.
Through lockdown they've done all the 2s, so some revision and some new learning, and will do B4. So they will have covered the expected content. This is possible because they would normally have had a set of year 9 'mocks' that haven't happened.
We will have to catch up on practicals and do extra revision for the remote learning they've done, but the ones who have engaged (most of mine have done really well) won't be too far 'behind' and we should have plenty of time to catch up so they can complete the course normally.
I don't have a year nine group for separate science but my colleagues have said they are on track too.
Some schools manage in 2 years, so I'm sure we can fit it in.