An active recall timer for the attempt before the answer.

Separate knowing from recognising

Pick a few questions before starting the clock. They might be definitions, short calculations, a diagram to label, or a process to explain. Keep the solutions out of sight for the Retrieve stage. If you get stuck, write down the point where you lost the thread instead of quietly looking it up.

There is no benefit in making the questions impossibly broad. Replace “Explain economics” with a prompt such as “What changes when demand rises and supply stays fixed?” You need an answer you can actually inspect.

Use the review to choose the next attempt

During Check, look at the working as well as the result. A correct answer reached by a guess needs different attention from a sound method with a small arithmetic error. Mark what happened in your own notes.

Repair is a fresh attempt at a small part of the work. Close the solution again and redo the troublesome step. If you still cannot explain it, go back to an example or ask for help. Repeatedly timing the same confusion will not resolve it by itself.

This is a practice block, not an exam

The default plan is ten minutes of retrieval, five of checking, and five of repair. Change those lengths to fit the questions. A timer provides a boundary for the activity; your answers provide the evidence of understanding. Save timed exam practice for sessions where pace is part of the skill you want to practise.