# CBSE Syllabus 2021-22 Check New Syllabus Class 9th to 12th

CBSE Syllabus 2021-22 ,  Check New Syllabus Class 9th to 12th , Check New Syllabus Class 9th to 12th।

CBSE have announced New CBSE Board exam pattern 2021-2022 , In New Exam Pattern CBSE make some changes regarding Class 10th and Class 12th.

CBSE have release New Syllabus for session 2021-2022

## CBSE Syllabus 2021 -2022 for class 9th

### FIRST TERM

1.  NUMBER SYSTEMS                  (8)
2. ALGEBRA                                     (5)
3.  COORDINATE GEOMETRY   (4)
4.  GEOMETRY                                (13)
5.  MENSURATION                         (4)
6. STATISTICS & PROBABILITY  (6)

Total 40

INTERNAL ASSESSMENT  (10)
TOTAL :-  50

### UNIT- NUMBER SYSTEMS

NUMBER SYSTEM

• Review of representation of natural numbers
•  integers,
• rational numbers on the number
• line.
• Rational numbers as recurring/ terminating decimals.
• Operations on real numbers.
•  Examples of non-recurring/non-terminating decimals. Existence of non-rational numbers (irrational numbers) such as , √2,√3 and their representation on the number
• Rationalization (with precise meaning) of real numbers of the type 1.  𝑎+𝑏√𝑥 and 2. √𝑥+√√𝑦 (and their combinations) where x and y are natural number and a and b are integers.
• Recall of laws of exponents with integral powers. Rational exponents with positive real bases (to be done by particular cases, allowing learner to arrive at the general laws

### UNIT-ALGEBRA

LINEAR EQUATIONS IN TWO VARIABLES

• Recall of linear equations in one variable.
• Introduction to the equation in two variables.
Focus on linear equations of the type ax+by+c=0.
• Explain that a linear equation in two variables has infinitely many solutions and justify their being written as ordered pairs of real
numbers, plotting them and showing that they lie on a line.
• Graph of linear equations in two variables.
• Examples, problems from real life with algebraic and graphical solutions being done simultaneously

### UNIT-COORDINATE GEOMETRY

COORDINATE GEOMETRY

• The Cartesian plane, coordinates of a point, names and terms associated with the co-ordinate plane, notations, plotting points in the plane.

### UNIT-GEOMETRY

LINES AND ANGLE

•  If a ray stands on a line, then the sum of the two adjacent angles so formed is 180˚ and the converse
• (Prove) If two lines intersect, vertically opposite angles are equal.
•  Results on corresponding angles, alternate angles, interior angles when a transversal intersects two parallel lines.
•  Lines which are parallel to a given line are parallel.
•  (Prove) The sum of the angles of a triangle is 180˚
•  (Motivate) If a side of a triangle is produced, the exterior angle so formed is equal to the sum of the two interior opposite angles.

TRIANGLES

•  Two triangles are congruent if any two sides and the included angle of one triangle is equal to any two sides and the included angle of the other triangle (SAS Congruence).
•  Two triangles are congruent if any two angles and the included side of one triangle is equal to any two angles and the included side of the other triangle (ASA Congruence).
•  Two triangles are congruent if the three sides of one triangle are equal to three sides of the other triangle (SSS Congruence).
•  Two right triangles are congruent if the hypotenuse and a side of one triangle are equal (respectively) to the hypotenuse and a side of the other triangle. (RHS Congruence)
•  The angles opposite to equal sides of a triangle are equal.
•  The sides opposite to equal angles of a triangle are equal.
•  The sides opposite to equal angles of a triangle are equal.

### UNIT-MENSURATION

HERON’S FORMULA

• Area of a triangle using Heron’s formula (without proof)

### UNIT-STATISTICS & PROBABILITY

STATISTICS

• Introduction to Statistics: Collection of data, presentation of data — tabular form, ungrouped / grouped, bar graphs, histograms .

### INTERNAL ASSESSMENT MARKS TOTAL MARKS

Periodic Tests                      3
Multiple Assessments        2
Portfolio                               2
Student Enrichment          3
Activities-practical work

### SECOND TERM

1.  ALGEBRA(Cont.)                                         12
2. GEOMETRY(Cont.)                                      15
3.  MENSURATION(Cont.)                             9
4.  STATISTICS & PROBABILITY(Cont)   4

Total                                          40
INTERNAL ASSESSMENT 10
TOTAL                                        50

### UNIT-ALGEBRA

POLYNOMIALS

• Definition of a polynomial in one variable, with examples and counter examples. Coefficients of a polynomial, terms of a polynomial and zero polynomial. Degree of a polynomial. Constant, linear, quadratic and cubic polynomials. Monomials, binomials, trinomials.
• Factors and multiples. Zeros of a polynomial. Factorization of ax2 + bx + c, a ≠ 0 where a, b and c are real numbers, and of cubic polynomials using the Factor Theorem.
• Recall of algebraic expressions and identities. Verification of identities and their use in factorization of polynomials.

### UNIT-GEOMETRY

• The diagonal divides a parallelogram into two congruent triangles.
•  In a parallelogram opposite sides are equal, and conversely.
•  In a parallelogram opposite angles are equal, and conversely.
•  A quadrilateral is a parallelogram if a pair of its opposite sides is parallel and equal.
•  In a parallelogram, the diagonals bisect each other and conversely.
•  In a triangle, the line segment joining the mid points of any two sides is parallel to the third side and in half of it and (motivate) its converse.

CIRCLES

• Through examples, arrive at definition of circle and related concepts-radius, circumference, diameter, chord, arc, secant, sector, segment, subtended angle.
• Equal chords of a circle subtend equal angles at the centre and (motivate) its converse.
• The perpendicular from the centre of a circle to a chord bisects the chord and conversely, the line drawn through the centre of a circle to bisect a chord is perpendicular to the chord.
•  Equal chords of a circle (or of congruent circles) are equidistant from the centre (or their respective centres) and conversely.
• The angle subtended by an arc at the centre is double the angle subtended by it at any point on the remaining part of the circle.
•  Angles in the same segment of a circle are equal.
•  The sum of either of the pair of the opposite angles of a cyclic quadrilateral is 180° and its converse.

CONSTRUCTIONS

• Construction of bisectors of line segments and angles of measure 60˚, 90˚, 45˚ etc.,
• equilateral triangles.
• Construction of a triangle given its base, sum/difference of the other two sides and one base angle.

### UNIT-MENSURATION

SURFACE AREAS AND VOLUMES

• Surface areas and volumes of cubes, cuboids, spheres (including hemispheres) and right circular cylinders/cones.

### UNIT-STATISTICS & PROBABILITY

PROBABILITY

• History, Repeated experiments and observed frequency approach to probability.
• Focus is on empirical probability.

### INTERNAL ASSESSMENT MARKS TOTAL MARKS

Periodic Tests               3
Multiple Assessments 2
Portfolio                          2
Student Enrichment Activities-practical work
3

## SUBJECT :- SCIENCE  Term-wise Syllabus

CLASS IX :- Theory

### First Term

•  Matter-Its Nature and Behaviour                           09
• Chapter – 2
•  Organization in the Living World                            18
• Chapter :- 5
• Chapter :- 6
•  Motion, Force and Work                                             13
• Chapter :- 8
• Chapter :  9

### Second Term

• Matter-Its Nature and Behaviour                              18
• Chapter :- 3
• Chapter:- 4
• Organization in the Living World                               08
•  Chapter :-13
• Motion, Force and Work                                                 14
• Chapter :- 10
• Chapter :- 11

Total Theory (Term I+II)  :- 80
Internal Assessment: Term I :-  10
Internal Assessment: Term II :- 10
Grand Total :- 100

### Unit I: Matter- It’s Nature and Behaviour

#### Chapter – 2  Is matter around us Pure

• Nature of matter: Elements, compounds and mixtures.
• Heterogeneous and homogenous mixtures,
• colloids and suspensions.

### Unit II: Organization in the Living World

#### Chapter – 5 The Fundamental Unit of Life

• Cell – Basic Unit of life: Cell as a basic unit of life; prokaryotic and eukaryotic cells,
• multicellular organisms;
• cell membrane and cell wall, cell organelles and cell inclusions; chloroplast,
• mitochondria, vacuoles, endoplasmic reticulum, Golgi apparatus; nucleus, chromosomes – basic structure, number.

#### Chapter – 6 Tissues

• Tissues, Organs, Organ System, Organism:
• Structure and functions of animal and plant tissues (only four types of tissues in animals; Meristematic and Permanent tissues in plants).

### Unit III: Motion, Force and Work

#### Chapter – 8 Motion

• Motion: Distance and displacement, velocity; uniform and non-uniform motion along a straight line;
• acceleration, distance-time and velocity-time graphs for uniform motion and uniformly accelerated motion, derivation of equations of motion by graphical method; elementary idea of uniform circular motion.

#### Chapter – 9 Force and Laws of Motion

• Force and Newton’s laws: Force and Motion, Newton’s Laws of Motion, Action and Reaction forces,
• Inertia of a body, Inertia and mass, Momentum, Force and Acceleration. Elementary idea of conservation of Momentum.

### Unit I: Matter- It’s Nature and Behaviour

#### Chapter – 3  Atoms and Molecules

• Particle nature and their basic units: Atoms and molecules, Law of constant proportions, Atomic
and molecular masses. Mole concept: Relationship of mole to mass of the particles and numbers.

#### Chapter – 4 Structure of Atom

Structure of atoms: Electrons, protons and neutrons, valency, chemical formula of common compounds. Isotopes and Isobars.

### Unit III: Motion, Force and Work

#### Chapter – 10 Gravitation

• Gravitation: Gravitation; Universal Law of Gravitation, Force of Gravitation of the earth (gravity),
Acceleration due to Gravity; Mass and Weight; Free fall.

#### Chapter – 11 Work and Energy

• Work, energy and power: Work done by a Force, Energy, power; Kinetic and Potential energy;
Law of conservation of energy.

#### Chapter – 13 Why do we fall ill

• Health and Diseases: Health and its failure. Infectious and Non-infectious diseases, their causes and
manifestation.
• Diseases caused by microbes (Virus, Bacteria and Protozoans) and their prevention;
Principles of treatment and prevention. Pulse Polio programmes.

### Unit IV: Our Environment

#### Chapter -14 Natural Resources

• Physical resources: Air, Water, Soil. Air for respiration, for combustion, for moderating temperatures;
• movements of air and its role in bringing rains across India. Air, water and soil pollution (brief introduction).
• Holes in ozone layer and the probable damages. Bio-geo chemical cycles in nature: Water, Oxygen, Carbon and Nitrogen.

### PRACTICALS

Practicals should be conducted alongside the concepts taught in theory classes.

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