umm...

What data have you collected (or do you plan to collect)?

Generally, it's a good idea to put data in columns, with a title at the top.

For formulas that track with the data, you'll want a column for those as well.

For formulas that are summaries, leave room at the top of the sheet, or off to the side of the data.

If you plan to make graphs, it's easiest if you make your left-most column of data the info you want for your x-axis... easiest, but by no means necessary.