Hi Sanjay,

Yes, Every new class syllabus give take referencing from previous class syllabus. Each class has its own particular value and importance. Nothing is useless in previous classes, they just gives you a base to start your education goals. Students must know the CBSE syllabus for Class 8 in order to prepare for Class 9.

While we comparing both classes syllabus their information becomes similar to each other, but the class 9 syllabus is an upgrade to new knowledgable contents in compare to class 8.

Class 8 Maths NCERT Syllabus :-

Number System

1. Rational Numbers

2. Powers

3. Squares, Square roots, Cubes, Cube roots

4. Playing with numbers

Algebra

1.Algebraic Expressions

Ratio and Proportion

Geometry

1. Understanding shapes

2. Representing 3-D in 2-D

3. Construction

Mensuration

Data handling

Introduction to graphs

Class 9 Maths Syllabus :-

S No.     Units

1              Unit 1: Number Systems

2              Unit 2: Algebra

3              Unit 3: Coordinate Geometry

4              Unit 4: Geometry

5              Unit 5: Mensuration

6              Unit 6: Statistics and Probability

That’s all, Hope this information helps you.

For more syllabus details, visit link - https://school.careers360.com/articles/ncert-syllabus