Being collaborative

There are 308 NRICH Mathematical resources connected to Being collaborative
Domino Sequences
problem
Favourite

Domino sequences

Age
5 to 7
Challenge level
filled star empty star empty star
Find the next two dominoes in these sequences.
Egyptian Rope
problem
Favourite

Egyptian rope

Age
7 to 11
Challenge level
filled star filled star empty star

The ancient Egyptians were said to make right-angled triangles using a rope with twelve equal sections divided by knots. What other triangles could you make if you had a rope like this?

A Puzzling Cube
problem
Favourite

A puzzling cube

Age
7 to 11
Challenge level
filled star empty star empty star

Here are the six faces of a cube - in no particular order. Here are three views of the cube. Can you deduce where the faces are in relation to each other and record them on the net of this cube?

Fractional Triangles
problem
Favourite

Fractional triangles

Age
7 to 11
Challenge level
filled star empty star empty star

Use the lines on this figure to show how the square can be divided into 2 halves, 3 thirds, 6 sixths and 9 ninths.

Carrying Cards
problem
Favourite

Carrying cards

Age
7 to 11
Challenge level
filled star empty star empty star
These sixteen children are standing in four lines of four, one behind the other. They are each holding a card with a number on it. Can you work out the missing numbers?
Domino Sorting
problem
Favourite

Domino sorting

Age
5 to 7
Challenge level
filled star empty star empty star
Try grouping the dominoes in the ways described. Are there any left over each time? Can you explain why?
First Connect Three
problem
Favourite

First connect three

Age
7 to 11
Challenge level
filled star empty star empty star
Add or subtract the two numbers on the spinners and try to complete a row of three. Are there some numbers that are good to aim for?
Translating Lines
problem
Favourite

Translating lines

Age
11 to 14
Challenge level
filled star empty star empty star
Investigate what happens to the equation of different lines when you translate them. Try to predict what will happen. Explain your findings.
Table patterns go wild!
problem
Favourite

Table patterns go wild!

Age
7 to 11
Challenge level
filled star filled star empty star
Nearly all of us have made table patterns on hundred squares, that is 10 by 10 grids. This problem looks at the patterns on differently sized square grids.
Ip Dip
problem
Favourite

Ip dip

Age
5 to 11
Challenge level
filled star empty star empty star

"Ip dip sky blue! Who's 'it'? It's you!" Where would you position yourself so that you are 'it' if there are two players? Three players ...?