Video+Act+2


 * Super 7pts [[image:Besos.gif width="69" height="66"]]**


 * Video 2: "The Golden Mean" (week 8) **


 * Pre-listening:**

a. What do you know about the golden mean? I know that it exists a number called golden ratio and sometimes golden mean which is present in different proportions of nature for example the snail, human face, flowers, plants, etc. Also golden ratio is present in some ancient buildings as Egypt pyramids.

b. What's the connection between the golden mean and mathematics? Golden mean is the result of the division of two consecutive numbers of the Fibonacci sequence.

c. Mention five words you think you will listen to in the video.

1) Fibonacci 2) Sequence 3) Snail 4) Ratio 5) Nature


 * freakyspiral.jpg ||
 * freakyspiral.jpg ||

Image taken from: []

Please click on the following link watch the video and then answer the following questions. []
 * II. While viewing and after viewing**

1. What's the process to construct the Fibonacci numbers? Knowing that the Fibonacci sequence star with the number one twice, to know what are the following numbers of the sequence you must to add up the two consecutive previous numbers.

2. Why are many things designed using the Fibonacci rectangle and spiral? Because the measure of the parts of this things coincide whit the proportions of Fibonacci rectangle which is the base to built the Fibonacci spiral.

3. Mention some examples of the Fibonacci spiral in the world around us and inside us. Around us: * Snail shell * Pine cones * Some flowers * Dark holes * Hurricanes * Embryos

Inside us: * DNA 4. In your opinion what are the applications of the Fibonacci theories? I think that Fibonacci theories have been used by many people in architecture, music, cinema, graphic designs, etc, searching to enter in harmony whit the nature and natural perfection.