Visualising and representing

There are 575 NRICH Mathematical resources connected to Visualising and representing

problem

Favourite

Catrina's cards

Age

5 to 7

Challenge level

How would you find out how many football cards Catrina has collected?

problem

Favourite

Nine colours

Age

11 to 16

Challenge level

Can you use small coloured cubes to make a 3 by 3 by 3 cube so that each face of the bigger cube contains one of each colour?

problem

Favourite

Triangles to tetrahedra

Age

11 to 14

Challenge level

Imagine you have an unlimited number of four types of triangle. How many different tetrahedra can you make?

problem

Favourite

Pick's theorem

Age

14 to 16

Challenge level

Polygons drawn on square dotty paper have dots on their perimeter (p) and often internal (i) ones as well. Find a relationship between p, i and the area of the polygons.

problem

Favourite

Special numbers

Age

11 to 14

Challenge level

My two digit number is special because adding the sum of its digits to the product of its digits gives me my original number. What could my number be?

problem

Favourite

Square coordinates

Age

11 to 14

Challenge level

A tilted square is a square with no horizontal sides. Can you devise a general instruction for the construction of a square when you are given just one of its sides?

problem

Favourite

Speeding up, slowing down

Age

11 to 14

Challenge level

Experiment with the interactivity of "rolling" regular polygons, and explore how the different positions of the dot affects its speed at each stage.

problem

Favourite

Shape times shape

Age

7 to 11

Challenge level

These eleven shapes each stand for a different number. Can you use the number sentences to work out what they are?

problem

Favourite

Which is cheaper?

Age

14 to 16

Challenge level

When I park my car in Mathstown, there are two car parks to choose from. Can you help me to decide which one to use?

problem

Favourite

Subtraction surprise

Age

7 to 14

Challenge level

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

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Visualising and representing

Catrina's cards

Nine colours

Triangles to tetrahedra

Pick's theorem

Special numbers

Square coordinates

Speeding up, slowing down

Shape times shape

Which is cheaper?

Subtraction surprise