Interestingly enough you will now apply your Gothic Cathederal findings to you own body? Yes, the two do have somethings in common...

Ready:
Take a look at this: http://evolutionoftruth.com/goldensection/body.htm

Hint: You may want to take some notes in your journal, so the information is at your fingertips (like the pun?).

Set:
Get your ruler, your partner and your journal. Refer to the information you gathered in the first step, and measure your body to see if the Golden Mean really works. Record the measurements of the lengths of your body in your journal.

Go:
Look at the numbers you gathered from your measurements. Review the math in the Golden Mean and Fibonacci's Sequence and see how close you are. Remember you are dealing with a ratio, so you will need to do some number comparison.

They say that girls are supposed to have proportions closer to the Golden Mean than boys. Compare the class results and see if this proves true.

Next step: The Golden Mean in spirals & leaves...