The assignment that I'm going to set for the holiday period is one that we've given students for a number of years. It's quite practical and will allow you to get out and about - it's no good being shut up in your rooms all the time! It does have a written element, too. Um, basically it's a data gathering exercise and there are two choices with regard to how you collect the data. We'll go through those in a moment. I'm also going to give you a link to an internet site that is - well it's critical that you review this before you do anything, as it provides a lot of guidance on data presentation, both in terms of how you plot it - its diagrammatic form and also its description, which has to be clear.