Stage 1 Articles

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I've Submitted a Solution - What Next?

In this article, the NRICH team describe the process of selecting solutions for publication on the site.

On What Day Did it Happen?

Read this article to find out the mathematical method for working out what day of the week each particular date fell on back as far as 1700.

Calendars

Calendars were one of the earliest calculating devices developed by civilizations. Find out about the Mayan calendar in this article.

Mathematical Symbols

A brief article written for pupils about mathematical symbols.

Measure for Measure

This article, written for students, looks at how some measuring units and devices were developed.

Cracking Codes

Jenny Murray describes how she developed her interest in making and breaking codes.

On Time?

This article explains how Greenwich Mean Time was established and in fact, why Greenwich in London was chosen as the standard.

History of Money

If you would like a new CD you would probably go into a shop and buy one using coins or notes. (You might need to do a bit of saving first!) However, this way of paying for the things you want did not always exist. Find out more ...

Nowadays the calculator is very familiar to many of us. What did people do to save time working out more difficult problems before the calculator existed?

Using Dice Here and There

Bernard's article reminds us of the richness of using dice for number, shape and probability.

Peg and Pin Boards

This article for teachers suggests activities based on pegboards, from pattern generation to finding all possible triangles, for example.

Lucky Numbers

This article for pupils explores what makes numbers special or lucky, and looks at the numbers that are all around us every day.

Arrays, Multiplication and Division

This article explores the use of the array to support children's thinking around multiplication and division.