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February 10, 2016 by Mr Richo   

How accurately can you make a 30 cm ruler? Use a strip of cover paper to create your own ruler from memory. Remember to evenly space the mm and cm increments.

Now for the real challenge.  Make 1 metre. Make folds to start you off. For example find the half way mark.Picture 1

How accurate was your ruler?  Compare with the real thing.


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