To reduce the exam stress of students due to the prevailing health emergency situation and prevent learning gaps, the Central Board of Secondary Education (CBSE) has decided to revise the syllabi for nearly 190 subjects of classes IX-XII for the academic session 2020-21. This one-time measure is taken due to the loss of classroom teaching on the closure of schools. The revision of syllabi is a measure taken due to the extraordinary situation prevailing in the country and at different parts of the world. Considering the importance of achieving the level of learning, the syllabus has been rationalised to the extent possible by retaining the core concepts. The Heads of Schools and Teachers may ensure that the topics that have been reduced are also explained to the students to the extent required to connect different topics.
The schools have also been directed to follow the Alternative Academic Calendar prepared by NCERT for transacting the curriculum. Therefore, each of the topics that have been wrongly mentioned in media as deleted have been covered under Alternative Academic Calendar of NCERT which is already in force for all the affiliated schools of the Board. The topics being mentioned as dropped are either being covered by the rationalized syllabus or in the Alternative Academic Calendar of NCERT.
Following is an Alternative Academic Calendar released for Classes IX to XII developed by NCERT for all the stages of school education:
- Eight Week Alternative Academic Calendar for the Primary Stage Part II-English ( Hindi)
- Alternative Academic Calendar for Students Primary-English ( Hindi)
- Alternative Academic Calendar for Students Upper Primary-English ( Hindi)
- Alternative Academic Calendar for Students Secondary-English ( Hindi)
- Alternative Academic Calendar for Students Higher Secondary-English ( Hindi)
- Cyber Safety and Security: Online Learning in Times of COVID-19- English ( Hindi)
Find below the links to the deleted portion in Class 11 and 12 curriculum:
- Deleted - Accountancy
- Deleted - Applied Mathematics
- Deleted - Biology
- Deleted - Bio-Technology
- Deleted - Business Studies
- Deleted - Chemistry
- Deleted - Computer Science
- Deleted - Economics
- Deleted - Engineering Graphics
- Deleted - English Core
- Deleted - English Elective
- Deleted - Entrepreneurship
- Deleted - Geography
- Deleted - Hindi Core
- Deleted - Hindi Elective
- Deleted - History
- Deleted - Home Science
- Deleted - Informatics Practices
- Deleted - Legal Studies
- Deleted - Mathematics
- Deleted - Physical Education
- Deleted - Physics
- Deleted - Political Science
- Deleted - Psychology
- Deleted - Sociology
And subject-wise links to the deleted portion for Class 9 and 10 curriculum are:
- Deleted - Computer Application
- Deleted - English - Language and Literature
- Deleted - Hindi A
- Deleted - Hindi B
- Deleted - Home Science
- Deleted - Mathematics
- Deleted - Science
- Deleted - Social Science
The reduced syllabus will not be part of the topics for Internal Assessment and year-end Board Examination. Alternative Academic Calendar and inputs from the NCERT on transacting the curriculum using different strategies may also be part of the teaching pedagogy. For Elementary Classes (I-VIII) schools may follow the Alternative Academic Calendar and Learning Outcomes specified by NCERT. The complete revised curriculum for all the classes can be accessed at http://cbseacademic.nic.in/Revisedcurriculum_2021.html
For reference purpose, the following is the deletion portion for Class 12 Mathematics subject:
| UNIT/CHAPTER | CLASS 12 SYLLABUS REDUCED |
| Unit 1: Relations and Functions | |
| 1. Relations and Functions | - composite functions - Inverse of a function |
| 2. Inverse Trigonometric Functions | - Graphs of inverse trigonometric functions - Elementary properties of inverse trigonometric functions |
| Unit 2: Algebra | |
| 1. Matrices | - Existence of non-zero matrices whose product is the zero matrix. - Concept of elementary row and column operations. - Proof of the uniqueness of inverse, if it exists. |
| 2. Determinants | - Properties of determinants - Consistency, inconsistency and number of solutions of system of linear equations by examples, |
| Unit-Ill: Calculus | |
| 1. Continuity and Differentiability | Rolle’s and Lagrange’s Mean Value Theorems (without proof) and their geometric interpretation. |
| 2. Applications of Derivatives | Rate of change of bodies, use of derivatives in approximation |
| 3. Integrals | / Vax2 + bx + c dx, / (ax + b)^ax2 + bx + c dx □ Definite integrals as a limit of a sum |
| 4. Applications of the Integrals | Area between any of the two above-said curves |
| 5. Differential Equations | - Formation of differential equation whose general solution is given. - Solutions of linear differential equation of the type: ^+px=q,where p and q are functions of y or constants. |
| Unit-IV: Vectors and Three-Dimensional Geometry | |
| 1. Vectors | Scalar triple product of vectors. |
| 2. Three - dimensional Geometry | Angle between (i) two lines, (ii) two planes, (iii) a line and a plane |
| Unit-V: Linear Programming | |
| 1. Linear Programming | The mathematical formulation of L.P. problems (unbounded) |
| Unit-VI: Probability | |
| 1. Probability | Mean and variance of random variable. Binomial probability distribution. |
The deleted portion of Class 10 Mathematics syllabus is:
| CHAPTER | TOPICS REMOVED |
| UNIT l-NUMBER SYSTEMS | |
| REAL NUMBERS | Euclid’s division lemma |
| UNIT ll-ALGEBRA | |
| POLYNOMIALS | Statement and simple problems on division algorithm for polynomials with real coefficients. |
| PAIR OF LINEAR EQUATIONS IN TWO VARIABLES |
Cross multiplication method |
| QUADRATIC EQUATIONS | Situational problems based on equations reducible to quadratic equations |
| ARITHMETIC PROGRESSIONS | Application in solving daily life problems based on sum to n terms |
| UNIT lll-COORDINATE GEOMETRY | |
| COORDINATE GEOMETRY | Area of a triangle. |
| UNIT IV-GEOMETRY | |
| TRIANGLES | - Proof of the following theorems are deleted - The ratio of the areas of two similar triangles is equal to the ratio of the squares of their corresponding sides. - In a triangle, if the square on one side is equal to sum of the squares on the other two sides, the angle opposite to the first side is a right angle. |
| CIRCLES | No deletion |
| CONSTRUCTIONS | Construction of a triangle similar to a given triangle. |
| UNIT V- TRIGONOMETRY | |
| INTRODUCTION TO TRIGONOMETRY |
Motivate the ratios whichever are defined at 0° and 90° |
| TRIGONOMETRIC IDENTITIES | Trigonometric ratios of complementary angles. |
| HEIGHTS AND DISTANCES | No deletion |
| UNIT VI-MENSURATION | |
| AREAS RELATED TO CIRCLES | Problems on central angle of 120° |
| SURFACE AREAS AND VOLUMES |
Frustum of a cone. |
| UNIT VI-STATISTICS & PROBABILITY | |
| STATISTICS | - Step deviation Method for finding the mean - Cumulative Frequency graph |
| PROBABILITY | No deletion |