### Room Doubling

Investigate the different ways you could split up these rooms so that you have double the number.

### Fibonacci's Three Wishes 2

Second of two articles about Fibonacci, written for students.

### Leonardo of Pisa and the Golden Rectangle

Leonardo who?! Well, Leonardo is better known as Fibonacci and this article will tell you some of fascinating things about his famous sequence.

# Simple Train Journeys

##### Stage: 1 and 2 Challenge Level:

Well, here's a train route. The train starts at the top and makes a number of visits to the stations.
Now let's suppose that the train is going to make visits to three stations (they do not have to be different stations - each station can be visited several times!).
So the first station would be Dorby - this will always be the case! (Why?)
Then the train can go on to Ender. When at Ender it could return and visit Dorby again OR it could go on to Floorin.
So two different journeys:
Dorby - Ender - Floorin
Dorby - Ender - Dorby

Your challenge is to find all the different journeys for visiting four stations.

You could then go on to find all the different journeys for visiting more stations - try five.