Video+Nº+2

** "The Golden Mean" **
a. What do you know about the golden mean?
 * Pre-listening: **

I do not know much about the Golden mean, but seeing quickly on google, I think that is something with number, that is relations with a ratio
b. What's the connection between the golden mean and mathematics?

I don't are sure, is something like the relationship is the existence of "Phi", which has been used for the construction of various mathematical forms like, spirals, rectangles.
c. Mention five words you think you will listen to in the video.

- Length

 * [[image:englishformath2/freakyspiral.jpg caption="freakyspiral.jpg"]] ||
 * freakyspiral.jpg ||

Image taken from: []

Please click on the following link watch the video and then answer the following questions. [|http://es.youtube.com/watch?v=2zWivbG0RI]
 * II. While viewing and after viewing **

1. What's the process to construct the Fibonacci numbers?

===The process is very easy,, yo have to calculate one plus one equal 2, (1+1=2). after, you take the second number of the last equation and plus it with the result of the last equation (1+2=3).and this process continue.===

2. Why are many things designed using the Fibonacci rectangle and spiral?

I guess that it is used because, the things that they did it using this ratio, results more atractive for the human eye. In one word is for to attract the attention.
3. Mention some examples of the Fibonacci spiral in the world around us and inside us.

Some things may be the iPods, DNA, music, flower, etc,
4. In your opinion what are the applications of the Fibonacci theories?

===I think that one of the applications is something like when the using of the golden ratio in the research of DNA had has done that research more rentable, because the length of DNA delimited with this ratio, contains the information to explain the formation of life.===