Revision Notes
Real Numbers – Revision Notes
Class 10Mathematics 4 pages
Fundamental Theorem of Arithmetic: every composite number can be written as a product of primes in a unique way (apart from order).
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NCERT Solutions
Quadratic Equations – NCERT Solutions
Class 10Mathematics 12 pages
Standard form: ax² + bx + c = 0, where a ≠ 0.
Chapter Explanations
Chemical Reactions and Equations – Chapter Explanation
Class 10Science 8 pages
A chemical equation must be balanced so that the number of atoms of each element is the same on both sides (law of conservation of mass).
Important Q&A
Electricity – Important Questions & Answers
Class 10Science 6 pages
Ohm’s law: V = IR, at constant temperature.
Chapter Summaries
A Letter to God – Summary
Class 10English 2 pages
Lencho, a farmer, has complete faith in God. A hailstorm destroys his entire crop.
Grammar & Writing
Formal Letter Writing – Format & Samples
Class 9English 5 pages
Format: sender’s address → date → receiver’s address → subject → salutation → body → complimentary close → name.
NCERT Solutions
Motion – NCERT Solutions
Class 9Science 10 pages
Distance is a scalar; displacement is a vector and can be zero even when distance is not.
Chapter Explanations
Number Systems – Chapter Explanation
Class 9Mathematics 7 pages
Rational numbers can be written as p/q (q ≠ 0); their decimal expansion is terminating or repeating.
Revision Notes
The French Revolution – Revision Notes
Class 9Social Science (SST) 5 pages
French society was divided into three Estates; the Third Estate paid most of the taxes.
Board Exam Prep
Nationalism in India – Board Exam Prep
Class 10Social Science (SST) 6 pages
Non-Cooperation Movement (1920–22) was called off after the Chauri Chaura incident in 1922.
Grammar & Writing
Hindi Vyakaran – Sandhi & Samaas
Class 10Hindi 6 pages
Sandhi: do varnon ke mel se hone wala parivartan — swar sandhi, vyanjan sandhi aur visarg sandhi.
Grammar & Writing
Hindi Patra Lekhan – Formal & Informal Letters
Class 8Hindi 4 pages
Aupcharik patra (formal): pradhanacharya, adhikari ya sampadak ko likhe jaate hain.
Grammar & Writing
Tenses – Rules & Practice Sheet
Class 7English 5 pages
Simple Present: Subject + V1(s/es) — habits and general truths.
Chapter Summaries
Integers – Chapter Summary
Class 7Mathematics 3 pages
Integers include negative numbers, zero and positive numbers.
Chapter Explanations
Fractions – Concept Notes
Class 6Mathematics 4 pages
A fraction represents a part of a whole: numerator / denominator.
Chapter Summaries
Components of Food – Summary
Class 6Science 3 pages
Major nutrients: carbohydrates, proteins, fats, vitamins and minerals.
Revision Notes
Introduction to Computers – Revision Notes
Class 6Computer Science 3 pages
A computer works in the IPO cycle: Input → Process → Output, with storage.
Important Q&A
Python Basics – Important Questions
Class 11Computer Science 6 pages
Python is a high-level, interpreted language; indentation defines blocks of code.
Chapter Explanations
Units and Measurement – Chapter Explanation
Class 11Science 7 pages
SI base units: metre, kilogram, second, ampere, kelvin, mole and candela.
Revision Notes
Electric Charges and Fields – Revision Notes
Class 12Science 6 pages
Coulomb’s law: F = kq₁q₂ / r², where k = 9 × 10⁹ N m² C⁻².
NCERT Solutions
Relations and Functions – NCERT Solutions
Class 12Mathematics 14 pages
A relation is reflexive, symmetric and transitive → equivalence relation.
Board Exam Prep
Board Exam Strategy – Class 12
Class 12English 4 pages
Use the 15-minute reading time to plan the order in which you will attempt sections.
Board Exam Prep
Class 10 Maths – Board Exam Prep Kit
Class 10Mathematics 8 pages
Revise all formulas from Trigonometry, Mensuration and Statistics in one sheet.
Important Q&A
Our Past – Important Questions
Class 8Social Science (SST) 5 pages
Learn key dates and events in the order they happened — a timeline helps.
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