An Introduction to Magic Squares
Age 7 to 16
Find out about Magic Squares in this article written for students. Why are they magic?!
An Introduction to Tree Diagrams
Age 11 to 16
This article explains how tree diagrams are constructed and helps you to understand how they can be used to calculate probabilities.
An Introduction to Differentiation
Age 14 to 18
An article introducing the ideas of differentiation.
An Introduction to Modular Arithmetic
Age 14 to 18
An introduction to the notation and uses of modular arithmetic
An Introduction to Polar Coordinates
Age 14 to 18
This introduction to polar coordinates describes what is an effective way to specify position. This article explains how to convert between polar and cartesian coordinates and also encourages the creation of some attractive curves from some relatively easy equations.
An Introduction to Proof by Contradiction
Age 14 to 18
An introduction to proof by contradiction, a powerful method of mathematical proof.
An Introduction to Vectors
Age 14 to 18
The article provides a summary of the elementary ideas about vectors usually met in school mathematics, describes what vectors are and how to add, subtract and multiply them by scalars and indicates why they are useful.
An Introduction to Complex Numbers
Age 16 to 18
A short introduction to complex numbers written primarily for students aged 14 to 19.
An Introduction to Galois Theory
Age 16 to 18
This article only skims the surface of Galois theory and should probably be accessible to a 17 or 18 year old school student with a strong interest in mathematics.
An Introduction to Mathematical Induction
Age 16 to 18
This article gives an introduction to mathematical induction, a powerful method of mathematical proof.
An Introduction to Mathematical Structure
Age 16 to 18
An introduction to the sort of algebra studied at university, focussing on groups.
An Introduction to Number Theory
Age 16 to 18
An introduction to some beautiful results in Number Theory.
NRICH is part of the family of activities in the Millennium Mathematics Project.