Search

Taking a Die for a Walk
problem

Taking a Die for a Walk

5 to 11

Investigate the numbers that come up on a die as you roll it in the direction of north, south, east and west, without going over the path it's already made.

The Koch Snowflake
problem

The Koch Snowflake

16 to 18

Explore the strange geometrical properties of the Koch Snowflake.

problem
Favourite

This Pied Piper of Hamelin

7 to 11

Investigate the different numbers of people and rats there could have been if you know how many legs there are altogether!

The Cyclic Quadrilateral
article

The Cyclic Quadrilateral

11 to 16
This gives a short summary of the properties and theorems of cyclic quadrilaterals and links to some practical examples to be found elsewhere on the site.
Ones Only
problem

Ones Only

11 to 14
Find the smallest whole number which, when mutiplied by 7, gives a product consisting entirely of ones.
Number Juggle
problem

Number Juggle

7 to 11
Fill in the missing numbers so that adding each pair of corner numbers gives you the number between them (in the box).
A powerful Matrix
problem

A Powerful Matrix

14 to 18

What happens when you find the powers of this matrix?

Triangular Tantaliser
problem

Triangular Tantaliser

11 to 14

Draw all the possible distinct triangles on a 4 × 4 dotty grid. Convince me that you have all possible triangles.

LOGO Challenge 10 - Circles
problem

Logo Challenge 10 - Circles

11 to 16

In LOGO circles can be described in terms of polygons with an infinite (in this case large number) of sides - investigate this definition further.

Displaying 241 - 250 of 830