Stage: 2 Challenge Level: 
Unfortunately we haven't received any solutions to this problem yet.
Why don't you try making two granny knots, then rotating one of them in the three different ways? Then you can compare your rotated knot with your unrotated knot more easily.
Now try the same thing with two reef knots.
Visualising. Reflections. Rotations. Investigations. Interactivities. Working systematically. Practical Activity. Compound transformations. Mathematical modelling. Tangram.
Published November 2007,December 2007.
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