# Resources tagged with: Video

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### There are 30 results

Broad Topics > Physical and Digital Manipulatives > Video

### Nim-7

##### Age 5 to 14Challenge Level

Can you work out how to win this game of Nim? Does it matter if you go first or second?

### Truth or Lie

##### Age 7 to 11Challenge Level

Take a look at the video of this trick. Can you perform it yourself? Why is this maths and not magic?

### Strike it Out for Two

##### Age 5 to 11Challenge Level

Strike it Out game for an adult and child. Can you stop your partner from being able to go?

### Strike it Out

##### Age 5 to 11Challenge Level

Use your addition and subtraction skills, combined with some strategic thinking, to beat your partner at this game.

### Daisy

##### Age 7 to 11Challenge Level

In this game for two players, take it in turns to shade one petal, or two petals next to each other. Is it better to go first or second?

### Tumbling Down

##### Age 7 to 11Challenge Level

Watch this animation. What do you see? Can you explain why this happens?

### All Change

##### Age 5 to 7Challenge Level

There are three versions of this challenge. The idea is to change the colour of all the spots on the grid. Can you do it in fewer throws of the dice?

### Unexpected Ordering

##### Age 5 to 7Challenge Level

Watch the video of Fran re-ordering these number cards. What do you notice? Try it for yourself. What happens?

### Surprising Split

##### Age 7 to 11Challenge Level

Does this 'trick' for calculating multiples of 11 always work? Why or why not?

### Roll over the Dice

##### Age 7 to 11Challenge 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?

### 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.

### Subtraction Surprise

##### Age 7 to 14Challenge Level

Try out some calculations. Are you surprised by the results?

### Totality

##### Age 5 to 11Challenge Level

This is an adding game for two players. Can you be the first to reach the target?

### Pouring Problem

##### Age 7 to 11Challenge Level

What do you think is going to happen in this video clip? Are you surprised?

##### Age 7 to 14Challenge Level

Watch our videos of multiplication methods that you may not have met before. Can you make sense of them?

### Air Nets

##### Age 7 to 18Challenge Level

Can you visualise whether these nets fold up into 3D shapes? Watch the videos each time to see if you were correct.

### Counting Cards

##### Age 7 to 11Challenge 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?

### Bundles of Cubes

##### Age 7 to 11Challenge Level

Watch this animation. What do you notice? What happens when you try more or fewer cubes in a bundle?

### Eightness of Eight

##### Age 5 to 7Challenge Level

What do you see as you watch this video? Can you create a similar video for the number 12?

### Dotty Six

##### Age 5 to 11Challenge Level

Dotty Six is a simple dice game that you can adapt in many ways.

### Subtraction Slip

##### Age 5 to 7Challenge Level

Can you spot the mistake in this video? How would you work out the answer to this calculation?

### Dotty Six for Two

##### Age 5 to 11Challenge Level

Dotty Six game for an adult and child. Will you be the first to have three sixes in a straight line?

### That Number Square!

##### Age 5 to 11Challenge Level

Exploring the structure of a number square: how quickly can you put the number tiles in the right place on the grid?

### Turning Granny

##### Age 7 to 11Challenge Level

A brief video looking at how you can sometimes use symmetry to distinguish knots. Can you use this idea to investigate the differences between the granny knot and the reef knot?

### Bryony's Triangle

##### Age 7 to 11Challenge 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?

### How Many?

##### Age 5 to 7Challenge Level

This project challenges you to work out the number of cubes hidden under a cloth. What questions would you like to ask?

### Modular Origami Polyhedra

##### Age 7 to 16Challenge 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.

### 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.

### James's Code Challenge

##### Age 7 to 18Challenge Level

The Enigma Project's James Grime has created a video code challenge. Watch it here!

### Helicopters

##### Age 7 to 16Challenge Level

Design and test a paper helicopter. What is the best design?