Why Two Ways?

For my talk i would like to go over the idea of metric over standard forms of measurement. The idea of having two ways to measure is a little ludicrous. I feel that as biologists we need to understand how to do simple conversions so that when we get asked a question we can give a better understood answer. Now the question would have to be based on some aspect that involves measurement. I will be going over simple was to explain conversions in a simple and rounded manner to answer qusestions simply and understandably.