See also: Matching topics (16) Matching titles (121)
Tug of War
Stage: 1 Challenge Level: 
Can you use the numbers on the dice to reach your end of the number line before your partner beats you?
Caterpillars
Stage: 1 Challenge Level:
These caterpillars have 16 parts. What different shapes do they make if each part lies in the small squares of a 4 by 4 square?
Getting the Balance
Stage: 1 Challenge Level:
If you hang two weights on one side of this balance, in how many different ways can you hang three weights on the other side for it to be balanced?
Turning
Stage: 1 Challenge Level:
Use your mouse to move the red and green parts of this disc. Can you make images which show the turnings described?
Matching Triangles
Stage: 1 Challenge Level:
Can you sort these triangles into three different families and explain how you did it?
Growing Garlic
Stage: 1 Challenge Level:
Ben and his mum are planting garlic. Use the interactivity to help you find out how many cloves of garlic they might have had.
Clapping Times
Stage: 1 Challenge Level:
If you count from 1 to 20 and clap more loudly on the numbers in the two times table, as well as saying those numbers loudly, which numbers will be loud?
2 Rings
Stage: 1 Challenge Level:
The red ring is inside the blue ring in this picture. Can you rearrange the rings in different ways? Perhaps you can overlap them or put one outside another?
Wallpaper
Stage: 1 Challenge Level:
These pieces of wallpaper need to be ordered from smallest to largest. Can you find a way to do it?
Sizing Them Up
Stage: 1 Challenge Level:
Can you put these shapes in order of size? Start with the smallest.
Little Man
Stage: 1 Challenge Level:
The Man is much smaller than us. Can you use the picture of him next to a mug to estimate his height and how much tea he drinks?
Number Balance
Stage: 1 Challenge Level:
Can you hang weights in the right place to make the equaliser balance?
Cuisenaire Environment
Stage: 1 and 2 Challenge Level:
An environment which simulates working with Cuisenaire rods.
Chairs and Tables
Stage: 1 Challenge Level:
Make a chair and table out of interlocking cubes, making sure that the chair fits under the table!
Ring a Ring of Numbers
Stage: 1 Challenge Level:
Choose four of the numbers from 1 to 9 to put in the squares so that the differences between joined squares are odd.
About NRICH: Evaluation
Stage: 1 Challenge Level:
This page describes the three evaluations that have been conducted on NRICH since it began.
Square It
Stage: 1, 2, 3 and 4 Challenge Level:
Players take it in turns to choose a dot on the grid. The winner is the first to have four dots that can be joined to form a square.
Lots of Lollies
Stage: 1 Challenge Level:
Frances and Rishi were given a bag of lollies. They shared them out evenly and had one left over. How many lollies could there have been in the bag?
Share Bears
Stage: 1 Challenge Level:
Yasmin and Zach have some bears to share. Which numbers of bears can they share so that there are none left over?
The Brown Family
Stage: 1 Challenge Level:
Use the information about Sally and her brother to find out how many children there are in the Brown family.
Assessing Pupil Progress (APP) and NRICH Resources
Stage: 1, 2, 3, 4 and 5
In this article Jenny talks about Assessing Pupils' Progress and the use of NRICH problems.
Nriching Mathematics in Haringey
Stage: 1 and 2
This article for teachers describes a joint project with Haringey Local Authority and NRICH to support improving using and applying mathematics, reasoning and creativity.
CPD Support Using Rich Mathematical Tasks
Stage: 1 and 2
Liz Woodham describes a project working with three primary schools which aimed to improve mathematics teaching and learning, and to trial and refine an online professional development resource.
Positive about Negative Numbers
Stage: 1 and 2
In this article for teachers, Liz Woodham describes resources on NRICH that can help primary-aged children get to grips with negative numbers.
Going for Games
Stage: 1 and 2
In this article for teachers, Liz Woodham describes the criteria she uses to choose mathematical games for the classroom and shares some examples from NRICH.
Working with Luke
Stage: 1 and 2
In this article for teachers, Liz Woodham describes conversations with Luke, aged 7, as they worked on some mathematics together.
What's All the Talking About?
Stage: 1, 2, 3 and 4
This fascinating article delves into the world of talk in the classroom and explains how an understanding of talking can really improve the learning of mathematics.
Engaging Students, Developing Confidence, Promoting Independence
Stage: 1, 2, 3, 4 and 5
Ideas to support mathematics teachers who are committed to nurturing confident, resourceful and enthusiastic learners.
Strike it Out
Stage: 1, 2 and 3 Challenge Level:
Use your addition and subtraction skills, combined with some strategic thinking, to beat your partner at this game.
Teachers' Experiences of Using NRICH
Stage: 1, 2, 3, 4 and 5 Challenge Level:
This collection of articles, written by teachers, focus on their experiences of embedding NRICH materials into their everyday practice.
Teachers Using NRICH 4
Stage: 1 and 2
Vicki Pike was one of four NRICH Teacher Fellows who worked on embedding NRICH materials into their teaching. In this article, she writes about her experiences of working with students at Key. . . .
Holes
Stage: 1 and 2 Challenge Level:
I've made some cubes and some cubes with holes in. This challenge invites you to explore the difference in the number of small cubes I've used. Can you see any patterns?
Hexpentas
Stage: 1 and 2 Challenge Level:
How many different ways can you find of fitting five hexagons together? How will you know you have found all the ways?
Two Heads Are Better Than One
Stage: 1, 2 and 3
An article that reminds us about the value and importance of communication in the mathematics classroom.
Today's Date - 01/06/2009
Stage: 1 and 2 Challenge Level:
What do you notice about the date 03.06.09? Or 08.01.09? This challenge invites you to investigate some interesting dates yourself.
News November 2008
Stage: 1, 2, 3, 4 and 5 Challenge Level:
Find out about what the NRICH team are doing.
What Is a Mathematically Rich Task?
Stage: 1, 2, 3, 4 and 5 Challenge Level:
Here we describe the essence of a 'rich' mathematical task
Children's Mathematical Writing
Stage: 1 and 2
Bernard Bagnall discusses the importance of valuing young children's mathematical representations in this article for teachers.
Integrating Rich Tasks - Activity 4.3
Stage: 1 and 2
This professional development activity is designed to help you assess your embedding of rich tasks into the curriculum and, in particular, think about what to do next
Integrating Rich Tasks - Activity 4.2
Stage: 1 and 2
This professional development activity is designed to help you assess your embedding of rich tasks into the curriculum through evaluating a theme
Integrating Rich Tasks - Activity 1.4
Stage: 1 and 2
This professional development activity encourages you to investigate how rich tasks and problem solving link together.
Multiplication Tables - Matching Cards
Stage: 1, 2, 3 and 4 Challenge Level:
Interactive game. Set your own level of challenge, practise your table skills and beat your previous best score.
Skeleton Shapes
Stage: 1 Challenge Level:
How many balls of modelling clay and how many straws does it take to make these skeleton shapes?
Cubes Here and There
Stage: 1 and 2 Challenge Level:
How many shapes can you build from three red and two green cubes? Can you use what you've found out to predict the number for four red and two green?
Integrating Rich Tasks - Activity 3
Stage: 1 and 2
The aim of this professional development activity is to successfully integrate some rich tasks into your curriculum planning.
Integrating Rich Tasks - Activity 1.3
Stage: 1 and 2
This professional development activity encourages you to investigate what is meant by higher-order thinking skills.
Integrating Rich Tasks - Activity 1.2
Stage: 1 and 2
These two tasks are designed to support professional development on integrating rich tasks. You are asked to think about what problems that encourage Higher Order Thinking Skills look like.
Integrating Rich Tasks - Activity 1.1
Stage: 1 and 2
This is activity 1.1 in the series of activities designed to support professional development through integrating rich tasks. This activity looks specifically at what makes an activity "rich".
The Tomato and the Bean
Stage: 1 Challenge Level:
At the beginning of May Tom put his tomato plant outside. On the same day he sowed a bean in another pot. When will the two be the same height?
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NRICH is part of the family of activities in the Millennium Mathematics Project, which also includes the Plus and Motivate sites.
email: nrich@damtp.cam.ac.uk
