Willow Tree
Fibonacci and Other Sequences
Fibonacci is an interesting sequence that forms some unique patterns. Learners explore sequences that do not have the typical arithmetic and geometric patterns. They identify the pattern and find the next consecutive terms....
University of St. Andrews (UK)
University of St. Andrews: Leonardo Pisano Fibonacci
This University of St. Andrews site contains biographical information on the life and accomplishments of Fibonacci.
Other
University of Surrey: Who Was Fibonacci?
A biography of Fibonacci that discusses his life and his various mathematical contributions. Also has pictures of the Fibonacci memorial in Pisa.
Math Is Fun
Math Is Fun: Nature, the Golden Ratio, and Fibonacci, Too
Looks at how spirals form in nature when cells reproduce in a flower, for example. An interactive lets students try entering different values to see if they can make a spiral pattern with no gaps. The correct figure would be the Golden...
Science Struck
Science Struck: 13 Real Life Examples of the Golden Ratio
Explains what the golden ratio is and its relationship to the Fibonacci sequence. Gives interesting examples of the golden ratio in plants, seashells, astronomy, weather, the human body, insects, DNA, and animals.
Wolfram Research
Wolfram Math World: Recursive Sequence
Defining recursive sequence, this site also discussed the relationship of Fibonacci numbers and recursive sequence.
Wolfram Research
Wolfram Math World: Pythagorean Triple
This site provides extensive information about Pythagorean triples. It begins by explaining its relation to the Pythagorean theorem, and then gives ways to generate Pythagorean triples using relatively prime numbers and Fibonacci numbers.
Wolfram Research
Wolfram Math World: Recursive Function
A definition of recursive function, and the relation of recursive function to recursion. There is also an example defining f(x,y) as the function xy.
Other
P.u.e.m.a.c.: Que Es La Razon Aurea?
Find out how to calculate the Golden Ratio in this exercise.
Math Words
Math words.com: Golden Mean
A basic definition for what the Golden Mean (Golden Ratio) is and how to find its reciprocal.
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