cutting
![Learner cuts a paper ruler in half](https://nisenet.org/sites/default/files/styles/curated_list_large/public/MeasRuler_cutting_Dec08.jpg?itok=8nbtQ_lJ)
Exploring Size - Tiny Ruler
In this activity, learners investigating just how small a billionth of a meter is by repeatedly cutting a paper ruler in half.
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![Learners cut strips of paper in half](https://nisenet.org/sites/default/files/styles/curated_list_large_cropped/public/NanoDays2009_259.jpg?h=a5eb5da0&itok=HmoG2Ehs)
Cutting It Down to Nano
In this activity, learners cut a small strip of paper in half as many times as they can to explore scale.
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