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CLASS-IX Course Details

Subject No. of Chapters No. of Lectures Taught Solved Problems No. of Hours
Maths 15 496 582 65

CLASS-IX Maths Syllabus
Number Systems
Irrational Numbers
Real Numbers and their Decimal Expansions
Representing Real Numbers on the Number Line
Operations on Real Numbers
Laws of Exponents for Real Numbers
Polynomials in One Variable
Zeroes of a Polynomial
Remainder Theorem
Factorisation of Polynomials
Algebraic Identities
Coordinate Geometry
Cartesian System
Plotting a Point in the Plane if its Coordinates are given
Linear equation in two variables
Linear Equations
Solution of a Linear Equation
Graph of a Linear Equation in Two Variables
Equations of Lines Parallel to x-axis and y-axis
Introduction to Euclid’s Geometry
Euclid’s Definitions, Axioms and Postulates
Equivalent Versions of Euclid’s Fifth Postulate
Lines and Angles
Basic Terms and Definitions
Intersecting Lines and Non-intersecting Lines
Pairs of Angles
Parallel Lines and a Transversal
Lines Parallel to the same Line
Angle Sum Property of a Triangle
Congruence of Triangles
Criteria for Congruence of Triangles
Some Properties of a Triangle
Some More Criteria for Congruence of Triangles
Inequalities in a Triangle
Angle Sum Property of a Quadrilateral
Types of Quadrilaterals
Properties of a Parallelogram
Another Condition for a Quadrilteral to be a Parallelogram
The Mid-point Theorem
Area of parallelogram and Triangles
Figures on the same Base and Between the same Parallels
Parallelogramms on the same Base and between the same Parallels
Triangles on the same Base and between the same Parallels
Circles and its Related Terms : A Review
Angle Subtended by a Chord at a Point
Perpendicular from the Centre to a Chord
Circle through Three Points
Equal Chords and their Distances from the Centre
Angle Subtended by an Arc of a Circle
Cyclic Quadrilaterals
Basic Constructions
Some Constructions of Triangles
Heron’s Formula
Area of a Triangle – by Heron’s Formula
Application of Heron’s Formula in finding Areas of Quadrilaterals
Surface Areas and Volumes
Surface Area of a Cuboid and a Cube
Surface Area of a Right Circular Cylinder
Surface Area of a Right Circular Cone
Surface Area of a Sphere
Volume of a Cuboid
Volume of a Cylinder
Volume of a Right Circular Cone
Volume of a Sphere
Collection of Data
Presentation of Data
Geographical Representation of Data
Measures of Central Tendency
Probability – an Experimental Approach
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Studying with TopChalks was the best part of my Class X preparation. I scored 100 marks in Maths.
Neeraj Kumar, Class XI Studying
DAV Public School, Rohtak
Class-IX Instructor

Mr. S C Goel, Math

Mr. S C Goel

Mr. S.C. Goel is the former principal and HOD, Maths, at Air Force Bal Bharati School, Lodhi Road, New Delhi and he has over 30 years..

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Mr. Sajid Hussain

Mr. Sajid Hussain is the HOD Physics at Delhi Public School, Maruti Kunj, Gurgaon. Take a look at any one of his lectures from any physics chapter of your choice. You will realize that there is no need to be afraid of Physics. He has made Physics an easy subject for numerous students, who have performed extremely well in the Board exams and also captured seats in top engineering and medical colleges throughout India. Mr. Sajid Hussain can do the same for you. He is a M.Sc. (Physics) graduate from AMU with 15 years of teaching experience and has been associated with top notch schools throughout his career. At Delhi Public School, Maruti Kunj, his students have consistently graduated with top marks in Physics. Some of his students travel hundreds of kilometers just to be tutored by him. Mr. Sajid Hussain has achieved these extraordinary results by simplifying what others seem to believe as difficult concepts to grasp. Take a look at a number of his sample lessons to see how he makes Physics easy for a student to learn.

Come, experience effortless learning of Physics...- Mr. Sajid Hussain,HOD Physics, Delhi Public School, Maruti Kunj, Gurgaon.

Mr. Shachindra Sharma

Mr. Shachindra Sharma (M.Sc. Delhi University, B.Ed. and CSIR Fellow) is one of the most popular, innovative and result oriented Chemistry teacher. He is working as a senior faculty (Dy. HOD) of Chemistry at Delhi Public School, R.K. Puram; India's Premier institution. For the last 18 years he has taught thousands of students in India and abroad. His simple but unique method of teaching has made Chemistry an easy to understand and high scoring subject. His students have been top achievers not only in the Board exams but also in many of the competitive tests conducted by top Engineering, Medical and other famous Universities of the world. Mr. Sharma's long cherished dream of making quality teaching available to the needy students is now a realty with He has prepared each lesson carefully, leisurely over a long period of time without any time pressure or constraints. At his lessons facilitate the students to learn Chemistry in the most relaxed atmosphere. These lessons are available online, 24 x 7, for the students to use at their discretion.

If it has done wonders for thousands of students, why not YOU...- Shachindra Sharma,Dy. HOD, Chemistry, Delhi Public School, R.K. Puram

Mr. S C Goel

Mr. S.C. Goel is the former principal and HOD, Maths, at Air Force Bal Bharti School, Lodhi Road, New Delhi and he has over 30 years of experience teaching Maths. He has made his students excel in Maths by relating it to analogies and events in day to day life. He is proud of the fact that his students are not only super achievers in Board Exams but many of them are also rankers in competitive exams such as IIT-JEE. In his course at, Mr. Goel has extensively covered every concept of XII Board Maths and regardless of where the student is in his/her preparation, Mr. Goel's lessons will assist the student in boosting his/her performance and confidence to significantly higher level. He has explained the concepts, problems and solutions in a number of different ways, in order to ensure that every level of student benefits from his teaching. The student can be assured that he/she will be extremely well prepared to score high on the XII Board Maths exam.

Let's make Math simpler...
- S. C. Goel,Former-Principal, Air Force Bal Bharti School - New Delhi

Mrs. Poonam Jubbal

Mrs. Poonam Jubbal is a highly trained and experienced educationist in the field of Biology with a B.Sc. and M.Sc. in Zoology and M.Ed. in education. She was a topper at Hindu College in her B.Sc. and M.Sc. exams with a 7th rank in Delhi University in the B.Sc. exam. Teaching Biology is her passion. She has taught Biology for the last 25 years at top schools like Delhi Public School and other premier institutes like Aakash. Many of her students today are accomplished Doctors, Scientists and Scholars. She has perfected a way to help students learn Biology in a systematic way, one that produces excellent results. Take a look at her sample lessons to see for yourself why she is such a sought after instructor.

Decipher the DNA of Biology...- Poonam Jubbal,Founder Teacher, DPS Faridabad - NCR


MATHS | By Mr.Goel, Air Force Bal Bharati School, New Delhi


Abhilash AIR-29, IIT-JEE’2010
Vaibhav Satavan AIR-62, IIT-JEE’2010
Harshit Sihara AIR-2, AIEEE;AIR-97, IIT-JEE’2010
Smriti Irani AIR 584, IIT-JEE’2010
Nitika 36th Rank, DPMT
Harshit Sihara AIR-2, AIEEE’2010;AIR-97, IIT-JEE’2010
Srinidhi K VAIR-871, IIT-JEE’2010;State rank-22, AIEEE’2010
Nikhil 75th Rank,DPMT’2010
Apeksha Nimbadia PCM-95% Class XII, Birla Vidya Niketan, Delhi
Maniya Saini 87% Class XII, Army Public School, Gurdaspur, Punjab
Upama Mittal 90% Class XII, DPS, Mathura Road, Delhi
Shwetabh P Pranwit Class XII, Don Bosco School, Delhi 90.2%
Nirmal Roul Class XII-92%
Hardeek Kambli Class XII-91%
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