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For younger learners

  • Early Years Foundation Stage

Working with Numbers

 

The problems in this masterclass package are intended to be used in a computer room to introduce students to ideas in Number Theory.

Working on a selection of these activities builds on students' knowledge of multiples and allows them to develop and formalise their understanding of linear sequences, remainders and modular arithmetic.

Shifting Times Tables

Age 11 to 14
Challenge Level Yellow star

Can you find a way to identify times tables after they have been shifted up or down?

What Numbers Can We Make?

Age 11 to 14
Challenge Level Yellow star

Imagine we have four bags containing a large number of 1s, 4s, 7s and 10s. What numbers can we make?

Take Three from Five

Age 11 to 16
Challenge Level Yellow starYellow star

Caroline and James pick sets of five numbers. Charlie tries to find three that add together to make a multiple of three. Can they stop him?

What Numbers Can We Make Now?

Age 11 to 14
Challenge Level Yellow starYellow star

Imagine we have four bags containing numbers from a sequence. What numbers can we make now?

Charlie's Delightful Machine

Age 11 to 16
Challenge Level Yellow star

Here is a machine with four coloured lights. Can you develop a strategy to work out the rules controlling each light?

Got It

Age 7 to 14
Challenge Level Yellow starYellow star

A game for two people, or play online. Given a target number, say 23, and a range of numbers to choose from, say 1-4, players take it in turns to add to the running total to hit their target.

An Introduction to Modular Arithmetic

Age 14 to 18

An introduction to the notation and uses of modular arithmetic

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The NRICH Project aims to enrich the mathematical experiences of all learners. To support this aim, members of the NRICH team work in a wide range of capacities, including providing professional development for teachers wishing to embed rich mathematical tasks into everyday classroom practice.

NRICH is part of the family of activities in the Millennium Mathematics Project.

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