Roger Penrose is a very famous mathematician.  He has spent a lot of time looking at tessellating patterns.

Tessellations are repeating patterns which fit together perfectly without any gaps or overlapping (think about your bathroom tiles!) 

Roger Penrose tried to find a tessellation without a repeating pattern and after many years he was succesful - he used a kite shape and a dart shape! 

Do you think you could make his special tessellation?

Click and drag the yellow and blue shapes to place them on the grid. Use the arrows to spin the shapes into the right position.

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