Stage: 2, 3 and 4 Challenge Level: 
You can make your own Celtic Knots by using five basic design tiles.
Use copies of these tiles to make the patterns shown on this page . Not as easy as you think! Now get creative and make your own designs.
(Some diagrams used come from John Matthew's article Celtic Design in 'Mathematics in School', March 1998)
This activity features in our December 2008 Advent Calendar .
Mathematical reasoning & proof. Interactivities. Visualising. Real world. Introducing algebra. Logo. Discussion. Practical Activity. biology. Angle properties of shapes.
Published .
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NRICH is part of the family of activities in the Millennium Mathematics Project, which also includes the Plus and Motivate sites.
email: nrich@damtp.cam.ac.uk