We moved into measurement, this week. We discussed how in the old days before rulers were invented, people used to use their body parts to measure objects. This kids couldn’t believe this was true and brought up a very big problem… our feet and fingers are different sizes! We realized that when we use a common unit – like a paperclip – we all get the same results. To test this theory, we used paperclips to measure various things in our math book and around the room.

We also introduced the word “length” and talked about how to line up measurement tools properly to get the most accurate measurement. We compared lengths of objects from shortest to longest and longest to shortest (1, 2, 3).