Daily revision prompt
Close the book and write five facts you remember from your last chapter. Reopen the notes only after two minutes.
Four Core Subjects + AI
Detailed notes, chapter by chapter.
Built from the new NCERT books for the 2026–27 session — Ganita Manjari, Exploration, Understanding Society and Kaveri — plus the CBSE Artificial Intelligence (417) books: the AI Facilitator's Handbook and the Python Content Manual. Every chapter comes with a one-shot revision video, practice questions with explanatory solutions, and an MCQ quiz, alongside the notes. The AI books can be downloaded directly from this site.
Chapter notes
One-shot revision videos
Book-back solutions
Chapter quizzes
Official NCERT book links
Official CBSE AI book links
Personal study notes
Study-style survey
Your study dashboard
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Mark chapters complete inside any chapter to build your revision streak.
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Your revision toolkit
Use these short routines alongside the chapter notes. They are designed for active recall, better answers, and calmer exam preparation.
Read, hide, retrieve
Read one small heading, hide it, then explain it in your own words. Retrieval strengthens memory more than rereading.
- Use chapter headings as questions
- Check gaps in a different colour
The 1–3–7 plan
Review a chapter after one day, three days, and seven days. Each review can be shorter than the previous one.
- Day 1: full recall
- Day 3: quiz and errors
- Day 7: one-page summary
Build complete answers
For long answers, use a clear claim, supporting evidence or steps, and a final link back to the question.
Turn mistakes into marks
After every quiz, note the error type: concept, memory, calculation, wording, or time. Fix the cause, not only the answer.
Capture what matters
Save definitions, doubts, formulas, quotations, and quick summaries in My Notes. Notes remain available in this browser.
Revision studio
Turn study time into remembered learning
Use a subject-specific recall structure, then work in one calm, timed block. The aim is not to cover everything—it is to finish one clear outcome.
Subject answer boosters
Small frameworks to use when a blank page feels difficult.
Mathematics
Given → Find → Method → Working → Check. Write the theorem or formula before substituting values, and always include units.
Science
Observation → Principle → Explanation → Result. Name variables, label diagrams, and connect evidence to the conclusion.
Social Science
Claim → Evidence → Explanation → Significance. Use dates and examples only when they strengthen the argument.
English
Point → Reference → Technique → Effect. Explain how the chosen word, image, or structure shapes meaning.
Focus timer
Choose a short session, define one outcome, and begin. The timer keeps running while you move through the page.
15:00
Ready for one clear task.
LearnSphere Study Lab
Study less passively. Remember more.
A personal revision workspace built on the chapters already inside LearnSphere. Flashcards, bookmarks, smart revision queues, study streaks and focus sessions are saved locally in this browser.
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Study on consecutive calendar days. Opening a chapter or completing a flashcard session counts as activity.
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Bookmark chapters that need another look. Your saved list becomes the starting point for the revision queue.
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Attempts recorded by LearnSphere's existing chapter quizzes.
Flashcards from your chapters
Pick a subject and chapter. Each card is generated from the chapter's existing headings and notes, so no original study content is replaced.
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Your next recall card will appear here.
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What to study next
Priority goes to bookmarks, incomplete chapters and recently studied material.
Build a realistic study habit
Set a daily target and log completed focus minutes. This is a simple planning tool, not a grade.
0 / 30 min
Use the 3-step loop
- Recall: answer from memory before reopening the notes.
- Repair: use the AI Tutor or chapter notes to fix the exact gap.
- Retest: take the chapter quiz and record the mistake type.
Mathematics
Ganita Manjari replaces the older 12-chapter Class 9 Maths book with 8 chapters that emphasise proof, reasoning and real-life modelling over rote formulae. Click a chapter, then switch between Notes, One-Shot Video and Book-Back Solutions.
Science
Exploration is a single integrated volume covering Physics, Chemistry, Biology and — for the first time — Earth Science. Every chapter opens with an open-ended question meant to spark enquiry before giving answers.
Social Science
The four separate books used earlier — History, Geography, Civics and Economics — have been merged into one integrated textbook of thematic chapters, built around India's story and its place in the world. Notes below are organised by strand.
English
Kaveri replaces Beehive and Moments with one integrated book of 8 thematic units. Each unit pairs one prose piece with one poem on a shared theme, and every unit follows the same structure: Reflect and Respond → Reading for Meaning → Check Your Understanding → Critical Reflection → Vocabulary in Context → Speaking Activity → Listening Task → Writing Task → Learning Beyond the Text.
Artificial Intelligence
CBSE's Class 9 AI curriculum (subject code 417) is built around two books curated with support from Intel: the AI Facilitator's Handbook — covering the AI Project Cycle, AI Ethics, Data Literacy, Math for AI and Generative AI (Units 1–4) — and the Python Content Manual — hands-on programming through 6 chapters (Unit 5). Both books open from their official CBSE download links below, with chapter-wise explanatory notes, solved practice questions and MCQ quizzes for every chapter of both books.
Personal workspace
My Notes
Capture definitions, doubts, formulas, quotations, and chapter summaries. Your notes are saved automatically in this browser.
Chapter PDF workspace
PDF → Smart Notes
Upload one or more chapter PDFs. LearnSphere reads selectable text in your browser, builds revision notes, and creates a downloadable notes PDF.
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Tip: text-based NCERT PDFs work best. If a PDF is scanned as images, the browser cannot read it without OCR; this tool will tell you which file needs OCR.
📚 Chapter map
⭐ Quick revision
🔑 Key terms
🧠 Active recall
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