Measuring Using Wool

Today we measured each other in pairs using wool.  We then cellotaped our wool  onto a piece of paper with our face and name on it.

When we hung all the bits of wool up, we found that we must have made some errors as the length of string didn't go from the shortest to the tallest like they should have as they were in the same order as in our photo of us lined up from the smallest to the biggest.