How it works
The idea of this study technique is to frame your revision around the types of questions the exam or other assessment is going to ask you.
I think the best way to explain this is to use an example.
If your teen is studying Biology, lets say specifically mitosis and meiosis. They know that they will be assessed on both of these in the exam.
It would be tempting to simply learn the steps of each process separately.
Thats absolutely fine, and would probably see your teen get a decent grade. But if I wanted to absolutely ace the exam, whilst studying I would ask myself how is this topic going to be assessed?