How to make short notes for JEE and NEET that you will use in revision

Summary: Short notes are written after you have studied and practised a chapter, and they hold only what you are likely to forget: formulas with conditions, exceptions, traps and your own mistakes. Aim for one to three pages a chapter. If a set of notes takes longer than 15 minutes to revise, it is too long.

Class notes and short notes are different things

Class notes are a record of what the teacher taught. They are long, they follow the teacher's order, and they include derivations and examples you needed once, to understand. You will not read all of them again in the last two months before JEE or NEET, because there will not be time.

Short notes are a revision tool. They exist for the moment in December of Class 12 when you have 20 minutes to refresh Rotational Motion before a test. They should contain the things that slip out of memory, in a form you can scan quickly.

The most common mistake we see is a student making "short notes" on the day the chapter is taught, copying the class notes more neatly. That is rewriting, and it takes hours. Short notes come later.

When to write them

Write short notes after you have done three things with a chapter: attended the lectures, solved the exercise or module questions, and taken the chapter test. By then you know which parts you find easy and which parts trip you up. The trips are what go into the notes.

In practice, that means writing a chapter's short notes one to two weeks after it is finished in class. Then add to them every time a test or a PYQ exposes something new. Good short notes keep growing a little for months, and stay short because you cross out what you have learnt properly.

What goes in, subject by subject

Physics

• Formulas with the conditions under which they hold. "v = u + at" is useless without "constant acceleration only".
• Sign conventions (optics, thermodynamics, electrostatics) written out once, clearly.
• Standard results you should not derive in the exam, such as moments of inertia of common bodies.
• One line on each type of problem and the first step to take. "Pulley with massive string: tension is different at each point."
• Graphs, drawn small.

If you are revising a chapter like Laws of Motion, your short notes might be one page of free-body diagram rules and the five situations where you usually go wrong.

Chemistry

• Physical Chemistry: formulas, units, and the values you keep forgetting (R in different units, for example).
• Inorganic Chemistry: exceptions, trends that break, colours of compounds, and reactions in a compact table. This part of the syllabus depends heavily on memory, so the notes are longer here.
• Organic Chemistry: reaction maps showing how one functional group converts to another, reagents with what they do, and named reactions with one example each.

Our Inorganic Chemistry plan has more on how to organise that part.

Maths

• Standard results and formulas, especially in Trigonometry, Integration and Conic Sections.
• Shortcuts that save time in the exam, with the condition where they apply.
• Two or three "trick" questions per chapter that you solved in a clever way, written with the key step only.
• Common mistakes: forgetting the domain, dropping a constant of integration, missing a case.

Biology (NEET)

Biology is different because NCERT itself is the source. Many strong NEET students revise directly from the NCERT textbook, marked with a highlighter, and keep short notes only for:

• Lists that are easy to confuse (examples of each plant family, hormones and their sources).
• Numbers and facts from tables in NCERT.
• Diagrams with labels, redrawn once.
• Lines from NCERT that were asked in a PYQ, or that caught you out in a test.

Our guide on preparing NEET Biology from NCERT explains the reading method.

A one-page template

Take an A4 sheet or a page in a separate notebook for each chapter. Divide it roughly like this:

The "My mistakes" box links your short notes to your error log. When the same kind of mistake appears in the error log twice, it earns a line in the short notes.

Use one colour for the main content and one other colour for traps. More colours than that slow you down, and the time spent choosing pens is time not spent on questions.

Rules that keep notes short

1. No derivations. If you need a derivation, it belongs in class notes.
2. No worked solutions, only the key step.
3. Nothing you already know cold. Short notes are for the parts that slip.
4. Abbreviations and arrows are fine, as long as you will understand them in six months.
5. If a chapter's notes cross three pages, go through and cut.

How to revise from them

Reading notes again and again feels productive but does little. Cover the page, try to recall the formulas and traps, and then check. This is active recall, and it is explained in detail in our article on active recall and spaced repetition.

Revise each chapter's notes on a schedule: a day after writing them, a week later, a month later, and then before every major test. Our 1-7-30 revision method gives a sample timetable. In the final two months before the exam, you should be able to go through the short notes of every chapter in the syllabus in about a week.

Common questions