### There are 15 results

Broad Topics >

2D Geometry, Shape and Space > Shape, space & measures - generally

##### Stage: 3, 4 and 5 Challenge Level:

This task depends on groups working collaboratively, discussing and
reasoning to agree a final product.

##### Stage: 3 and 4

This article gives an wonderful insight into students working on the Arclets problem that first appeared in the Sept 2002 edition of the NRICH website.

##### Stage: 4 Challenge Level:

A kite shaped lawn consists of an equilateral triangle ABC of side 130 feet and an isosceles triangle BCD in which BD and CD are of length 169 feet. A gardener has a motor mower which cuts strips of. . . .

##### Stage: 4 Challenge Level:

How does shape relate to function in the natural world?

##### Stage: 4

For teachers. About the teaching of geometry with some examples
from school geometry of long ago.

##### Stage: 1, 2, 3, 4 and 5 Challenge Level:

We're excited about this new program for drawing beautiful mathematical designs. Can you work out how we made our first few pictures and, even better, share your most elegant solutions with us?

##### Stage: 3, 4 and 5 Challenge Level:

A task which depends on members of the group working
collaboratively to reach a single goal.

##### Stage: 3 and 4

Introducing a geometrical instrument with 3 basic capabilities.

##### Stage: 4 Challenge Level:

The largest square which fits into a circle is ABCD and EFGH is a square with G and H on the line CD and E and F on the circumference of the circle. Show that AB = 5EF.
Similarly the largest. . . .

##### Stage: 1, 2, 3 and 4

This is the first article in a series which aim to provide some insight into the way spatial thinking develops in children, and draw on a range of reported research. The focus of this article is the. . . .

##### Stage: 5 Challenge Level:

How efficiently can various flat shapes be fitted together?

##### Stage: 4 Challenge Level:

A quadrilateral inscribed in a unit circle has sides of lengths s1, s2, s3 and s4 where s1 ≤ s2 ≤ s3 ≤ s4.
Find a quadrilateral of this type for which s1= sqrt2 and show s1 cannot. . . .

##### Stage: 2, 3 and 4 Challenge Level:

Making a scale model of the solar system