The National Council of Educational Research and Training (NCERT) has released a new Class 9 mathematics textbook, 'Ganita Manjari' . The book is for the 2026-2027 academic year. It shifts focus from formulas to historical exploration of mathematical concepts. The curriculum integrates the Indian Knowledge System (IKS).
Ancient Indian Mathematics Integrated
NCERT credits ancient Indian scholars for foundational mathematical ideas. This approach aims to foster cultural understanding. It aligns with the National Education Policy 2020. The textbook presents mathematics as a product of Indian intellectual history. It replaces procedural definitions with historical context.
Key Mathematical Concepts and Origins
Ganita Manjari highlights several mathematical ideas with Indian roots:
- Coordinate Geometry: The book traces grid-based thinking to the Sindhu-Sarasvati Civilization. It attributes the Pythagorean Theorem's original formulation to Baudhayana.
- Zero and Negative Numbers: Brahmagupta's work on zero (Shunya) and negative numbers as algebraic entities is featured.
- Decimal System: The current decimal place-value system is linked to Rigvedic heritage and Aryabhata's writings.
- Calculus Origins: The Kerala School of Mathematics, including Madhava of Sangamagrama, is recognized for early work on infinite series.
Chapter Overview
| Chapter Title | Focus & IKS Connection |
| Orienting Yourself: The Use of Coordinates | Coordinate geometry via ancient grid systems. |
| Introduction to Linear Polynomials | Algebraic reasoning and historical equation solving. |
| The World of Numbers | Rational/irrational numbers and the Rigvedic decimal system. |
| Exploring Algebraic Identities | Geometric proofs for algebraic formulas with Indian roots. |
| I'm Up and Down and Round and Round | Motion, curves, and patterns in nature and architecture. |
| Measuring Space: Perimeter and Area | Mensuration based on ancient Sulba Sutras. |
| Introduction to Probability | Logical reasoning and the 'Mathematics of Maybe.' |
| Sequences and Progressions | Patterns, sequences, and Meru Prastara. |
The textbook aims to show students that mathematics is a dynamic science. It has evolved through centuries of Indian thought.
