Most students have the same experience: you read a chapter twice, it felt clear, and in the exam it is gone. The problem is rarely memory. It is that rereading produces a feeling of familiarity, and familiarity is not the same as being able to produce the answer yourself. These five methods all fix that in one way or another.
1. Close the book and recall it
Trying to pull an answer out of your head does more for memory than looking at it again — this is one of the most replicated findings in learning research, usually called the testing effect. So after a section, close the book and write down everything you can recall, then check what you missed. MCQs and flashcards are the same idea with the questions written for you: generate a set from your own notes or slides and answer it before you look anything up.
2. Explain it out loud, in your own words
If you cannot explain a concept without reading, you do not know it yet — you recognise it. Pick one idea, say it aloud as if teaching a friend who missed the class, and notice where you stall. Those stalls are exactly what to study next. With Porphy you can do this in Live Tutor mode: explain the concept to the voice tutor, in Bangla or English, and it tells you what you left out. It is the harshest test on this list, which is why it works.
3. Spread it over days instead of one long night
Reviewing the same material across several days beats the same total time in one sitting. The simplest version: study a topic today, test yourself on it tomorrow, again in three or four days, and once more the week before the exam. Be clear about one thing — Porphy does not schedule this for you. There is no reminder system and no review calendar in the product, so put the dates in your own phone or planner.
4. Understand why before you memorise what
A fact that hangs from an understanding is easier to keep than a fact standing alone. A student who memorises the fringe-width formula in physical optics has one formula to lose; a student who understands why the path difference decides bright and dark fringes can rebuild it in the exam hall. When a line will not land, highlight it and ask the tutor to explain it out loud with the whiteboard — the aim is to understand the line, then memorise what is left.
5. Sleep, and keep sessions short
Sleep is when what you studied is consolidated, so the all-nighter trades the very thing you are trying to buy. A cheap rule: the night before an exam, do one recall pass on your weakest topics and then sleep. In the days before, forty focused minutes with a break beats three hours with a phone beside you.
Pick one chapter. Five minutes: close the book and write what you remember. Ten minutes: answer an MCQ set on it and read every explanation. Five minutes: explain the one idea you got wrong out loud. Put tomorrow's recall in your planner.
What does not work
- Rereading and highlighting everything, which feels like progress and tests nothing.
- Copying an AI answer into your notes. You remember what you did the work to produce.
- Waiting for a trick. There is no shortcut that skips the retrieval step.
For a longer view of the same idea applied to a board exam, see HSC preparation with AI, and for how to turn a pile of slides into practice, make MCQs from a PDF or lecture slides.
Every new account starts with 2,000 credits free — no card, no subscription, and they never expire. A full researched course runs about 600–1,200 credits, an MCQ set or flashcard deck 10–30, and the voice tutor 20–60 a minute. Free accounts run a lighter pipeline so the credits go further: at most 3 parts per course, with text and tables in place of generated visualizations.