ISC Class 12 Notes & Study Material 2026–27 | Subject-Wise Guide

Benefit

Explanation

Depth consolidation

ISC syllabus is extensive; notes compress chapters into reviewable summaries

Formula mastery

Physics, Chemistry, and Maths require instant formula recall during exams

Derivation bank

ISC Physics and Maths expect full derivations — practising them from notes builds speed

Answer framing

English and Economics benefit from model answer templates

Quick revision

In the final two weeks, notes replace textbooks for time-efficient review

Question bank alignment

Notes organized by chapter connect directly to ISC question bank practice

Unit

Notes Focus

Electrostatics

Coulomb's law, Gauss's theorem derivation, capacitors (series and parallel), energy stored formula

Current Electricity

Kirchhoff's laws (with loop examples), Wheatstone bridge derivation, potentiometer principle

Magnetic Effects

Biot-Savart law, Ampere's circuital law, force on a current-carrying conductor, cyclotron

Electromagnetic Induction

Faraday's laws, Lenz's law, self-inductance, mutual inductance, AC generator diagram

AC Circuits

Phasors, LCR series circuit, resonance condition, power factor, transformer

Optics

Ray diagrams (mirror + lens), lens maker's equation, Young's double slit derivation, diffraction single slit

Modern Physics

Photoelectric effect equations, de Broglie wavelength, Bohr's model energy levels, radioactivity laws

Semiconductors

p-n junction diagram, diode I-V characteristic, transistor configurations, logic gates, truth tables

Unit

Notes Content

Solid State

Crystal systems, packing efficiency calculations, defects classification table

Solutions

Raoult's law, colligative properties (with formulas for osmotic pressure, depression of freezing point, etc.)

Electrochemistry

Nernst equation, EMF calculations, conductance and molar conductivity, Faraday's laws of electrolysis

Chemical Kinetics

Rate law, rate constant units table, Arrhenius equation, half-life for first and second order reactions

p-Block Elements

Comparison tables for Group 15, 16, 17, 18 elements — structure, properties, uses, important compounds

d and f Block

Electronic configuration patterns, colour and oxidation states of transition metals, lanthanides/actinides

Coordination Compounds

Werner's theory, nomenclature rules, isomerism types, and Crystal Field Theory basics

Organic — Name Reactions

One-page summary: reaction name → reactant → product → conditions (Sandmeyer, Reimer-Tiemann, etc.)

Biomolecules

Structure of glucose (open and ring), types of proteins and nucleic acids, enzyme characteristics

Topic

Notes Strategy

Relations & Functions

Types of functions with examples, composition and inverse function steps

Matrices & Determinants

Row operations, Cramer's rule, adjoint and inverse matrix steps with examples

Limits & Continuity

Standard limits, L'Hopital's rule application, continuity conditions

Differentiation

Chain rule, parametric differentiation, logarithmic differentiation worked examples

Applications of Derivatives

Maxima/minima steps, increasing/decreasing functions, tangent/normal problems

Integration

Standard forms table, integration by parts (ILATE), definite integral properties

Differential Equations

Variable separable, homogeneous, linear first-order — one worked example each

Vectors

Dot product, cross product, projection formula, scalar triple product

3D Geometry

Direction cosines, equation of a line, angle between planes, distance from a point to a plane

Probability

Bayes' theorem worked examples, binomial distribution formula and conditions

Linear Programming

Feasible region method with graph example

Unit

Notes Type

Sexual Reproduction in Plants

Diagram of anther cross-section, double fertilisation diagram and explanation

Human Reproduction

Male and female reproductive system labelled diagrams, events of fertilisation

Reproductive Health

Contraceptive methods table: type, mechanism, examples

Mendelian Genetics

Laws of segregation and independent assortment, Punnett square practice (mono + dihybrid)

Molecular Basis of Inheritance

DNA replication diagram, transcription and translation steps, genetic code properties

Evolution

Darwin's theory vs. Lamarck, Hardy-Weinberg principle, evidence for evolution

Human Health & Disease

Types of immunity (innate vs acquired), mechanism of vaccines, common pathogens table

Biotechnology

Recombinant DNA steps, restriction enzymes, PCR steps, applications (GMO, gene therapy)

Ecology

Food chain vs food web, energy flow (10% law), ecological pyramids diagrams

Biodiversity

Patterns, threats, conservation strategies (in-situ vs ex-situ)

Writing Type

Notes Structure

Essay (formal/discursive)

Introduction strategies, body paragraph pattern, conclusion techniques, transition phrases

Letter (formal)

Format template: address block, date, subject, salutation, body, complimentary close

Report

Heading, prepared by, date, subheadings (Purpose / Findings / Recommendations)

Notice

Institution name centred, NOTICE, date, heading, body, issued by

Comprehension

Technique: read questions first, then passage; paraphrase — never copy verbatim

Text Type

Notes Strategy

Poetry

For each prescribed poem: poet, central theme, tone, key literary devices, 2–3 critical lines (paraphrased)

Prose

For each story: setting, characters, plot arc, central conflict, theme

Drama

Act-wise summary, character motivations, key scenes, dramatic devices

Step

Action

1

Complete the chapter from the reference textbook

2

Write condensed notes: key concepts, formulas, diagrams

3

Add 1–2 solved examples per concept from the textbook

4

Solve related questions from your ISC question bank

5

Add common mistakes or examiner notes at the end of each chapter

6

Review notes within 24 hours and again after one week

7

In February–March, use notes exclusively for final revision

Topic

Why High Priority

Electrostatics

5-mark derivation question almost every year

Optics

Numericals and diagrams both appear regularly

Modern Physics

Short + long answer mix; high formula density

Semiconductors

Logic gates and diode questions — predictable and scorable