How many loops of string have been used to make these patterns?
How many pieces of string have been used in these patterns? Can you
describe how you know?
This train line has two tracks which cross at different points. Can
you find all the routes that end at Cheston?
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
Have a look at what happens when you pull a reef knot and a granny
knot tight. Which do you think is best for securing things
A brief video looking at how you can sometimes use symmetry to
distinguish knots. Can you use this idea to investigate the
differences between the granny knot and the reef knot?
West Lodge pupils explained the thinking behind this problem very
clearly and Sakib drew a diagram which really helps us picture what
Go to last month's problems to see more solutions.
This article for students gives some instructions about how to make some different braids.
A brief video explaining the idea of a mathematical knot.
Help the bee to build a stack of blocks far enough to save his
friend trapped in the tower.