Leonardo da Vinci (1452-1519) was a scientist and an artist. He thought that the span of someone’s arms was equal to their height. Why do you think he was interested in working out body proportions?

Do you think Leonardo’s theories still work today?

Was Leonardo’s theory that a person’s height is equal to their arm span true for New Zealand students in 2007?

Do our arms get longer as we get older?

In this activity you will explore whether the length of your arm span is related to how old you are.