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In this math lesson, learners explore the concept of using units to measure length. Learners first read "How Big is a Foot" by Rolf Myller and learn about units.

In this activity, learners use measurement concepts to make models of what their body parts might look like if they were a snake or a chameleon.

In this graphing exercise (page 2 of the pdf), learners compare their own height to the length of various sharks.

In this self-measuring activity, learners measure and record the length of their foot.

In this activity on page 1 of the PDF, learners compare the relative sizes of biological objects (like DNA and bacteria) that can't be seen by the naked eye.

An ordinary camera has a lens that makes an image on film. In a pinhole camera, a small hole replaces the lens.

In this math lesson, learners practice estimation and measurement skills as they move from station to station calculating length, volume, weight, and area.

Put math of measurement into lining up — and make waiting in line fun. Choose a size characteristic that learners can physically compare, such as foot length or hair length.

String Thing is an interactive online game in which learners change a virtual string's tension, length, and gauge to create different musical pitches.

This activity (on page 2 of the PDF under SciGirls Activity: Soccer Ball Kick) is a full inquiry investigation into transfer of motion.