Skip to content# Conway’s Rational Tangles

**Classifications**

Author(s): Tom Davis

What do adding positive and negative fractions have to do with tying knots? In this entertaining lesson, students will use ropes to explore and identify mathematical operations that untangle knots and lead to new thinking. Simple operations of twists and rotations circle back to practicing the addition of positive and negative fractions.

Topics covered: Algebra / Arithmetic

Session styles: Kinesthetic Element, Manipulatives

Associated Math Circles: MTC Network

Collections: Teacher Math Circle Starter Activities