Sign In Review of representation of natural numbers
Integers
Rational numbers on the number line
Representation of terminating / non-terminating recurring decimals, on the number line through successive magnification
Rational numbers as recurring/terminating decimals
Examples of non-recurring / non-terminating decimals
Existence of non-rational numbers (irrational numbers) such as √2, √3 and their representation on the number line
Explaining that every real number is represented by a unique point on the number line and conversely, every point on the number line represents a unique real number
Existence of √x for a given positive real number x (visual proof to be emphasized)
Definition of nth root of a real number
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)
Rationalization (with precise meaning) of real numbers of the type 1/(a+b√x) and 1/(√x+√y) (and their combinations) where x and y are natural number and a and b are integers
Class 9th Math
Class 9th Math1. Number Systems
2. Polynomials
3. Coordinate Geometry
4. Linear Equations in Two Variables
5. Introduction to Euclid's Geometry
6. Lines and Angles
7. Triangles
8. Quadrilaterals
9. Areas of Parallelograms and Triangles
10. Circles
11. Constructions
12. Heron's Formula
13. Surface Areas and Volumes
14. Statistics
15. Probability
0/15
Class 9th Science
Class 9th SciencePhysics:
The topics covered in Physics are Force and Pressure, Gravitation, Work and Energy, Sound, Reflection of Light, Refraction of Light, Human Eye and Colorful World, Electricity, Magnetic Effects of Electric Current, Sources of Energy, and Our Environment.Chemistry:
The topics covered in Chemistry are Matter in Our Surroundings, Atoms and Molecules, Structure of Atom, Classification of Elements and Periodicity in Properties, Chemical Bonding and Molecular Structure, States of Matter, Thermodynamics, and Hydrocarbons.Biology:
The topics covered in Biology are Tissues, Diversity in Living Organisms, Control and Coordination, Reproduction, Heredity and Evolution, Our Environment, and Natural Resources.
0/15
Class 9th English Literature
Class 9th English Literature1. Beehive:• Chapter 1 – The Fun They Had
• Chapter 2 – The Sound of Music
• Chapter 3 – The Little Girl
• Chapter 4 – A Truly Beautiful Mind
• Chapter 5 – The Snake and the Mirror
• Chapter 6 – My Childhood
• Chapter 7 – Packing
• Chapter 8 – Reach for the Top2. Moments:• Chapter 1 – A Truly Beautiful Mind
• Chapter 2 – Lost Spring
• Chapter 3 – The Adventures of Toto
• Chapter 4 – The Last Leaf
• Chapter 5 – Quality
• Chapter 6 – The Browning Version
• Chapter 7 – The Rebel
• Chapter 8 – Remembrance3. Supplementary Reader:• The Happy Prince
• The Beggar
• The Thief's Story
• An Indian Housewife
• An Astrologers Day
• The Proposal
• The Rat Trap
• A Face in the Dark
• Poem – A Tiger in the Zoo
• Poem – The Road Not Taken4. Grammar:• Tenses
• Modals
• Determiners
• Clauses
• Voice
• Narration
• Transformation of Sentences
• Prepositions
• Active and Passive Voice
• Question Tags
• Direct and Indirect Speech
0/31
Class 9th English Grammar
Some of the topics covered in CBSE Class 9 English Grammar are:1. Parts of Speech
2. Tenses
3. Active and Passive Voice
4. Narration
5. Direct and Indirect Speech
6. Articles
7. Prepositions
8. Noun
9. Pronoun
10. Adjective
11. Conjunction
12. Interjection
13. Determiners
14. Modals
15. Degrees of Comparison
16. Phrases and Clauses
17. Idioms and Phrases
18. Sentence Types
19. Kinds of Sentences
20. Paragraph Writing
0/44
Class 9th SST
1. India and the Contemporary World-II
2. Democratic Politics-II
3. Economics
4. Disaster Management
5. Contemporary India-I
6. Contemporary India-II
7. History-India and the Contemporary World-I
8. Geography-Contemporary India
9. Geography-The Earth: Our Habitat
10. Civics-Democratic Politics-I
0/20
About Lesson
Join the conversation
