Mathematics for CBSE Class 9 introduces many foundational concepts that serve as building blocks for higher classes. Topics such as algebraic identities, the surface areas and volumes of 3D shapes, ...

Get here the unit-wise syllabus for ICSE Class 9 Mathematics 2025-26. Also, know the suggested assignment list for the internal assessment. Rational and Irrational Numbers: Rational, irrational ...

When my students grow too dependent on their calculators, I ask them to find a number that, when multiplied by itself, gives them 2. Students quickly see that since 1² = 1 and 2² = 4, the answer has ...

The ancient Greeks wondered when “irrational” numbers can be approximated by fractions. By proving the longstanding Duffin-Schaeffer conjecture, two mathematicians have provided a complete answer. The ...