Measuring on a curve!

We have moved from measuring with meters (m) to measuring centimeters (cm) and inches (in). We have also discussed the uses of using a measuring tape to measure such things as a round ball or a persons head. Alternatively a string can be used, and a ruler or measuring tape can then be used to measure the length of the string. We practiced this exercise by measuring different curves assigned. Students took a longer piece of string to wind around different curves to then line up on a ruler to get an exact measurement. We were able to also estimate what we thought the lengths would be before measuring, then compare lengths of the actual. It was interesting to hear the variety of assumptions before using the string. However, it also added to a very purposeful closing conversation on measuring different lengths with different shapes and sizes.