How to use the online timer
Study sessions rarely fail for lack of material. They fail because the time was badly shaped: an evening that never quite started, or three hours that produced twenty minutes of work and a great deal of highlighting. A block with a defined start and a defined end turns an open-ended pile of revision into something finite, and finite things are much easier to begin.
These pages cover homework blocks sized for the age doing them, focused study on new material, revision built around testing yourself rather than rereading, reading time that survives contact with a phone, and exam-length practice under something like real time pressure. The recurring theme across all of them is that the comfortable methods are the ineffective ones: rereading feels productive because familiarity is pleasant, while retrieval feels difficult because it is doing something.
Spacing matters as much as length. The same total time split across several days beats one long sitting, because the forgetting in between is what makes the next attempt worth anything. Clear the distractions before the block starts rather than resisting them during it, and stop when the timer says so rather than drifting on out of guilt.