A personal investigation of Conway's Rational Tangles. What were the interesting questions that needed to be asked, and where did they lead?
The tangles created by the twists and turns of the Conway rope trick are surprisingly symmetrical. Here's why!
Twisting and turning with ropes can be encoded mathematically using fractions. Can you find a way to get back to zero?
Look carefully at the video of a tangle and explain what's happening.
A list of the video resources available on nrich
This article for students introduces the idea of naming knots using numbers. You'll need some paper and something to write with handy!