If you only have six months left and there is a particular subject that is reducing your percentage, trust me, I know how you feel. I have seen people scoring 30/80 in math in October raise their marks to 72/80 by February. And there is nothing supernatural about that; all it takes is a plan.
There is a basic understanding you should have six months, which is plenty of time. If you have 180 days to yourself, then just dedicating 1.5 hours per day towards your weak subject will give you over 270 hours. This is plenty of time to make sure you use it effectively.
Here’s the problem – you need to stop avoiding your weak subject. Students always do anything but work on their weak subjects. They go over their Science notes again even if they know everything, rewrite their English notes from memory, and somehow, when it’s 10 PM, they still haven’t touched the weak subject book. Don’t do that!
Why is this subject weak in the first place?
Before anything else, find out what the problem is. It will be one of the following four things:
- You didn’t get the basic concepts. Concepts in Class 10 rely on concepts in Class 9. If Class 9 is a weak point, Class 10 becomes impossible.
- You grasp the theory, but not how to apply it. It’s the most frequent of all especially in Maths and Physics.
- You forget everything. Dates in History, formulae in Maths, chemical reactions in Chemistry you just can’t retain them.
- You have told yourself you’re “hopeless” in this subject. Half of dealing with a weak subject is psychological. If you think you can’t do it, then you won’t.
Be honest which of the above applies to you. Solutions will vary depending on that.
Map your weak chapters first
What you cannot solve is that which you have not defined. What works:
Take out the past 3 papers you’ve taken. Not just the marks but the areas where you lost marks. Is it trigonometry? Organic Chemistry? The chapter on nationalism in Europe? Note all the chapters here. Afterwards, take a quick confidence test. Rate each chapter on a scale of 1-5 where 1 stands for “I prefer not to sit in the exam” and 5 is “I can teach this to anyone.” The areas scoring 1-2 are your target areas.
Prioritize—don’t try to fix everything at once
After having your list of weak chapters, categorize them as follows:
- High marks + Weak for you: This takes the top position. If trigonometry is worth 12 marks and you are poor in it, make yourself strong in it right away.
- High marks + Good for you: Stick to them by practicing every week.
- Low marks + Weak for you: Learn the basics so that you can at least answer the questions. It is useless to spend two weeks on a topic worth three marks.
Yes, do refer to the CBSE weightage for the new academic year. The board does change the weightage of each chapter every year.
The daily rule: 1.5 hours, no excuses
Learning a hard subject in 1.5 hours daily is better than cramming 10 hours on Sunday. The brain won’t remember anything that you try to stuff it once a week. Learn when you are mentally alert. That happens usually between 6:00-7:30 AM or 4:00-5:30 PM after some rest. Don’t postpone learning till 10 PM when you are already exhausted – you will only scan through the book and do nothing.
Subject-specific fixes
Different subjects need completely different approaches. Here’s what works:
Maths: You cannot learn maths by reading. You have to solve with a pen. Keep a formula notebook—before starting any question, write down what’s given, which formula applies, and the final answer with units. If you get stuck, try for 10 minutes before looking at the solution. And when you do check it, cover the answer and re-solve it yourself.
Science (Physics/Chemistry/Biology): Split it into three. Physics needs numerical practice—solve at least 5 numericals per topic. Chemistry needs reaction writing — write each reaction 3-4 times, don’t just read them. Biology is diagram-heavy—draw and label diagrams , they fetch easy marks even if your theory is average.
Social Science: Mind maps work better than paragraphs. For history, make a timeline — put all events in sequence. For geography, practice map work weekly. And in your answers, underline keywords. Examiners scan for specific terms like “Subsidiary Alliance,” “Biodiversity,” “Federalism.” If those words aren’t there, they won’t give full marks.
English: Study the NCERT Literature textbooks thoroughly – ‘First Flight’ and ‘Footprints without Feet’. Solve one unseen passage a week within the stipulated time. Learn the format for writing letter and application. Yes, handwriting does make a difference in English. A well-written paper fetches 2-3 marks more on account of good presentation alone.
Hindi: Vyakaran first, then literature. Work out Vyakaran daily from any standard reference book. In case of literature, study the chapter and write down Shabdarth (meaning of difficult words). Write what you are asked and not a summary.
NCERT is your entire game
For CBSE Class 10, NCERT is not one of many resources. it’s pretty much the only one you need. Here’s the right order:
- Read the chapter like a story. Understand the flow.
- Read every sidebar, “Do You Know” box, and in-text question. CBSE loves picking questions from these.
- Study all solved examples. Don’t skip them.
- Solve every single exercise question.
- Only then move to reference books or PYQs.
And one thing most students miss: check the deleted topics on the CBSE website. There are chapters and subtopics removed every year. Don’t waste time studying something that won’t appear.
The mistake notebook (this is the thing that actually works)
Buy a thin notebook—one just for your weak subject. Every time you make a mistake in a test or practice session, write down:
- The question
- The correct answer
- Why you got it wrong (“Forgot to square the root,” “Mixed up the dates,” “Used wrong tense”)
Review this notebook every Sunday. By February, it’ll be your personalized revision guide—every single page is something you specifically need to remember.
Mistakes that students keep making
- Revising only easy chapters. Feels productive, but it’s not helping.
- Skipping NCERT and going to reference books. Reference books are harder, not better. NCERT first, always.
- Watching lectures without solving. Watching = passive. Solving = learning. Do more of the second one.
- Hoping the tough chapter won’t come. It will. The board paper is designed to test your weak areas too.
- No timetable, mood-based studying. If you study what you “feel like,” the weak subject never gets done.
- Starting sample papers too early. If your concepts are shaky, papers will just demoralize you.
- Studying a chapter once and never revising. You will forget it by February. Revise or you wasted the time.
What if your marks still aren’t moving?
If you’ve followed this plan for 1-2 months and scores are stuck:
Change the medium. If self-study isn’t clicking, ask a teacher or a classmate to explain it. Sometimes a different explanation style makes it stick instantly. Go back to Class 9 basics. Especially in Maths and science—Class 10 struggles often trace back to Class 9 gaps. Spend a week rebuilding foundations. Focus on the high-scoring, easy sections. If you really can’t master the whole subject, at least nail the parts that give maximum marks for minimum effort: diagrams in Biology, map work in SST, formats in English.
The last 30 days
In the final month before boards, stop learning new things.
- Days 1-15: Revise your short notes and the mistake notebook. Do PYQs chapter by chapter.
- Days 16-25: 3-4 full sample papers in timed, exam-like conditions. No breaks, no phone.
- Days 26-30: Light revision only. Read NCERT line by line. Get 7-8 hours of sleep. Trust your preparation.
FAQ
Question : Is 6 months really enough to go from failing to 80+?
Answer: Yes—if you do 1.5 hours daily, stick to NCERT, and practice PYQs. I’ve seen it happen. It’s not comfortable, but it’s possible.
Question: How much time daily for a weak subject?
Answer 1.5 to 2 hours. No less. And do it when you’re fresh, not exhausted.
Question : Should I skip a difficult chapter if I run out of time?
Answer only as a last option. Try to cover the basics—even partial understanding gets you step marks. In CBSE, a formula written correctly can get you 1-2 marks even if the answer is wrong.
Question: Is NCERT alone enough for boards?
Answer: Yes. NCERT is the primary book for CBSE Class 10. Reference books are for extra practice after NCERT is done.
Question: How do I remember formulas and dates?
Answer: Write them on a chart, stick it near your desk, and look at it daily for 2 minutes. But more importantly, write them while practicing. Active recall beats rote memorization every time.
Question: I’m scared of my weak subject. How do I get over it?
Answer: Start small. Do the easiest questions first. Build some wins. Fear fades as you get better—it’s that simple.