The effort of trying before checking is what makes a solution stay in memory. Use a short timer, then a ladder of small hints, and only then the full answer.
This resource is part of the student study resources. Pair it with reviewing a question you got wrong for the step after the answer.
Why does opening the answer early hurt?
When you read the answer after one line of effort, your brain marks it as “known”. Then you feel you understood it, but you only followed it.
Trying first, even when you fail, shows you exactly what you did not know. The explanation then lands on a gap that is ready for it.
What is the three-pass routine?
- Stuck timer. Set five minutes for a short question, ten for a longer one. Write anything, even a diagram or the formula list.
- Hint ladder. When the timer ends, reveal only the first step of the answer, then try again for two minutes. Repeat step by step.
- Full check. Compare with the complete solution, then close it and redo from scratch.
The timed original practice session builder sets the timers for you.
A worked example with the ladder
Question: “The sum of two numbers is 20 and their product is 96. Find the numbers.”
Stuck timer runs out, you have written x + y = 20. Hint 1: “Let the numbers be x and 20 − x.” You try: x(20 − x) = 96.
Hint 2: “Expand and rearrange to a quadratic.” You write 20x − x² = 96, so x² − 20x + 96 = 0. Now you need to factorise: (x − 8)(x − 12) = 0, so x = 8 or 12.
Check: 8 + 12 = 20 and 8 × 12 = 96. You needed two hints, and you know exactly which ones: turning two facts into one variable, and rearranging.
What do I record?
Write one line per question: the hint you needed, in your own words. After a week, count. If “turn two facts into one variable” appears four times, that skill needs deliberate practice, not more random questions.
What is the common mistake?
Reading the answer “just to check the first step”, then the rest, because it is right there. Put the answers in a separate sheet or turn the page over. Distance helps.
How can a teacher help?
A teacher can give hints that match your level, never more than you need. Try this in the one-hour trial class (from RM50). Bring a topic where you usually peek early, and notice how different it feels when the hint is one sentence long.