Measuring

Today we decided to test out some ideas:

1. Your forearm is the same length as your foot.
2. Your arm span is the same length as your height.

We found out that for most people the first statement was true but the second was only true for a few people.

We also tried to think of other body parts that we could compare, such as your nose and your ear or your thumb and your big toe.

While we were doing this we learnt the following about measuring:

• you must make sure you measure right from the end of an object.
• you must use the same unit to measure both objects that you are comparing. 
• if you want to measure something that is not a straight line you need to use a measuring device that bends, such as string.