This is a good idea thanks! My wife and I talked about something similar recently. I think we’re going to try having some of our own office work scheduled for times when he is studying/revising.

My sense is that his problem isn’t particularly the understanding of the topic, it’s laying down a deep enough application of it to get the marks in the exams.

I like to take it a step further - make the act of getting ready for the task a separate task. Other folks might see a single job, but when I have some repair work needing done around the house, I need a job to check if I have what I need to fix it, another to work out what I need to do, another to move it all to right place etc.