Live Problems - Stage 3 & 4

Each time you visit the NRICH site there will be some activities which are 'live'. That means we are inviting you to send us your solutions and we will publish a selection of them, along with your name and school. If you'd like to read more about what we're looking for, read this short article.

Combining Lengthslive

Stage: 3 and 4

How many different lengths is it possible to measure with a set of three rods?

Climbing the Stairslive

Stage: 3 and 4

In how many ways can I get upstairs?

Going to the Cinemalive

Stage: 3 and 4

A cinema has 100 seats. Is it possible to fill every seat and take exactly £100?

You Can't Make an Omelette...live

Stage: 3 and 4

Can you devise the most efficient strategy for finding the highest floor from which you can drop an egg safely?

Drawing Polygonslive

Stage: 3 and 4

I wonder which polygons we can draw on dotty paper...

Exploring Arealive

Stage: 3 and 4

I wonder what we can find out about the areas of polygons drawn on dotty grids...

Exploring Coordinates and Vectorslive

Stage: 3 and 4

I wonder what we can find out when using coordinates and vectors on dotty grids...

Exploring Distancelive

Stage: 3 and 4

I wonder what we can find out about distances along grid lines...

Stage 3 and 4 Toughnutslive

Stage: 3 Challenge Level: Challenge Level:1

These Stage 3 and 4 problems have not yet been solved. Can you be the first?