There are 58 NRICH Mathematical resources connected to Video, you may find related items under Physical and Digital Manipulatives.
Broad Topics > Physical and Digital Manipulatives > Video
Tumbling Down
Age 7 to 11 Challenge Level:
Watch this animation. What do you see? Can you explain why this happens?
Eightness of Eight
Age 5 to 7 Challenge Level:
What do you see as you watch this video? Can you create a similar video for the number 12?
Pouring Problem
Age 7 to 11 Challenge Level:
What do you think is going to happen in this video clip? Are you surprised?
Subtraction Surprise
Age 7 to 14 Challenge Level:
Try out some calculations. Are you surprised by the results?
Perimeter Possibilities
Age 11 to 14 Challenge Level:
I'm thinking of a rectangle with an area of 24. What could its perimeter be?
That Number Square!
Age 5 to 11 Challenge Level:
Exploring the structure of a number square: how quickly can you put the number tiles in the right place on the grid?
Seven Squares
Age 11 to 14 Challenge Level:
Watch these videos to see how Phoebe, Alice and Luke chose to draw 7 squares. How would they draw 100?
Bryony's Triangle
Age 7 to 11 Challenge Level:
Watch the video to see how to fold a square of paper to create a flower. What fraction of the piece of paper is the small triangle?
Dotty Six
Age 5 to 11 Challenge Level:
Dotty Six is a simple dice game that you can adapt in many ways.
Become Maths Detectives
Age 7 to 11 Challenge Level:
Explore Alex's number plumber. What questions would you like to ask? Don't forget to keep visiting NRICH projects site for the latest developments and questions.
How Many?
Age 5 to 7 Challenge Level:
This project challenges you to work out the number of cubes hidden under a cloth. What questions would you like to ask?
Strike it Out
Age 5 to 11 Challenge Level:
Use your addition and subtraction skills, combined with some strategic thinking, to beat your partner at this game.
Twisting and Turning
Age 11 to 14 Challenge Level:
Take a look at the video and try to find a sequence of moves that will untangle the ropes.
Method in Multiplying Madness?
Age 7 to 14 Challenge Level:
Watch our videos of multiplication methods that you may not have met before. Can you make sense of them?
Whirlyball
Age 16 to 18 Challenge Level:
Whirl a conker around in a horizontal circle on a piece of string. What is the smallest angular speed with which it can whirl?
Seven Squares - Group-worthy Task
Age 11 to 14 Challenge Level:
Choose a couple of the sequences. Try to picture how to make the next, and the next, and the next... Can you describe your reasoning?
Take Three from Five
Age 14 to 16 Challenge Level:
Caroline and James pick sets of five numbers. Charlie chooses three of them that add together to make a multiple of three. Can they stop him?
Counting Cards
Age 7 to 11 Challenge Level:
A magician took a suit of thirteen cards and held them in his hand face down. Every card he revealed had the same value as the one he had just finished spelling. How did this work?
Beelines
Age 14 to 16 Challenge Level:
Is there a relationship between the coordinates of the endpoints of a line and the number of grid squares it crosses?
Summing Consecutive Numbers
Age 11 to 14 Challenge Level:
15 = 7 + 8 and 10 = 1 + 2 + 3 + 4. Can you say which numbers can be expressed as the sum of two or more consecutive integers?
Surprising Split
Age 7 to 11 Challenge Level:
Does this 'trick' for calculating multiples of 11 always work? Why or why not?
Unexpected Ordering
Age 5 to 7 Challenge Level:
Watch the video of Fran re-ordering these number cards. What do you notice? Try it for yourself. What happens?
Truth or Lie
Age 7 to 11 Challenge Level:
Take a look at the video of this trick. Can you perform it yourself? Why is this maths and not magic?
Bundles of Cubes
Age 7 to 11 Challenge Level:
Watch this animation. What do you notice? What happens when you try more or fewer cubes in a bundle?
Roll over the Dice
Age 7 to 11 Challenge Level:
Watch this video to see how to roll the dice. Now it's your turn! What do you notice about the dice numbers you have recorded?
Dotty Six for Two
Age 5 to 11 Challenge Level:
Dotty Six game for an adult and child. Will you be the first to have three sixes in a straight line?
Strike it Out for Two
Age 5 to 11 Challenge Level:
Strike it Out game for an adult and child. Can you stop your partner from being able to go?
Up, Down, Flying Around
Age 11 to 14 Challenge Level:
Play this game to learn about adding and subtracting positive and negative numbers
Strange Bank Account
Age 11 to 14 Challenge Level:
Imagine a very strange bank account where you are only allowed to do two things...
A Brief Introduction to Complex Numbers
Age 14 to 18 Challenge Level:
In this problem, we define complex numbers and invite you to explore what happens when you add and multiply them.
Sorted
Age 14 to 18 Challenge Level:
How can you quickly sort a suit of cards in order from Ace to King?
James's Code Challenge
Age 7 to 18 Challenge Level:
The Enigma Project's James Grime has created a video code challenge. Watch it here!
Constructing Triangles
Age 11 to 14 Challenge Level:
Generate three random numbers to determine the side lengths of a triangle. What triangles can you draw?
Take One Example
Age 5 to 11
This article introduces the idea of generic proof for younger children and illustrates how one example can offer a proof of a general result through unpacking its underlying structure.
Summing Geometric Progressions
Age 14 to 18 Challenge Level:
Watch the video to see how to sum the sequence. Can you adapt the method to sum other sequences?
Factorising with Multilink
Age 14 to 16 Challenge Level:
Can you find out what is special about the dimensions of rectangles you can make with squares, sticks and units?
Helicopters
Age 7 to 16 Challenge Level:
Design and test a paper helicopter. What is the best design?
Always a Multiple?
Age 11 to 14 Challenge Level:
Think of a two digit number, reverse the digits, and add the numbers together. Something special happens...
Turning the Place Over
Age 11 to 18 Challenge Level:
As part of Liverpool08 European Capital of Culture there were a huge number of events and displays. One of the art installations was called "Turning the Place Over". Can you find our how it works?
Drawing Celtic Knots
Age 11 to 14 Challenge Level:
Here is a chance to create some Celtic knots and explore the mathematics behind them.
Kingsfield School - Building on Rich Starting Points
Age 5 to 18
Alf and Tracy explain how the Kingsfield School maths department use common tasks to encourage all students to think mathematically about key areas in the curriculum.
Modular Origami Polyhedra
Age 7 to 16 Challenge Level:
These models have appeared around the Centre for Mathematical Sciences. Perhaps you would like to try to make some similar models of your own.
Slick Summing
Age 14 to 16 Challenge Level:
Watch the video to see how Charlie works out the sum. Can you adapt his method?
Speedy Summations
Age 16 to 18 Challenge Level:
Watch the video to see how to add together an arithmetic sequence of numbers efficiently.
Power Countdown
Age 14 to 16 Challenge Level:
In this twist on the well-known Countdown numbers game, use your knowledge of Powers and Roots to make a target.
Air Nets
Age 7 to 18 Challenge Level:
Can you visualise whether these nets fold up into 3D shapes? Watch the videos each time to see if you were correct.
Impossible Triangles?
Age 16 to 18 Challenge Level:
Which of these triangular jigsaws are impossible to finish?
