Moira is late for school. What is the shortest route she can take from the school gates to the entrance?
How many different journeys could you make if you were going to
visit four stations in this network? How about if there were five
stations? Can you predict the number of journeys for seven
This train line has two tracks which cross at different points. Can
you find all the routes that end at Cheston?
You decided that there is one piece of string
used in the left-hand loop and two pieces used in the right hand
And then you thought that there was one piece
of string used in the left-hand loop and three used in the
right-hand picture below:
Not many of you explained how you knew,
though. Here is what Lydia from Rickling C of E Primary said:
Well done also to Thea from John Young
Elementary School, Luke from St Patrick's School and Olivia from
Clitheroe Royal Grammar School who also told us how they went about
doing this problem.