Look at these pictures: 5 1 1 5 4 2 4 2 3 3 What do you notice? 1 13 5 2 4 3 1 12 2 11 3 10 4 9 5 8 7 6 Do you notice anything here? 5 4 11 1 2 3 6 12 3 10 1 13 2 11 1 9 7 2 3 10 4 4 5 13 12 9 5 8 8 7 6 Pinecones •Find the base of the pinecone •Locate each scale touching the base. This will radiate out as a spiral •How many spirals are there starting at the base of the pinecones? A B C •Now choose a pinecone, draw on each spiral with pencil, then coloured pen and count the number of spirals Pineapple •Look at the hexagonal scales on the pineapple •From the base to the crown, can you see parallel lines of: •Gentle slope spirals •Medium slope spirals •Steep slope spirals Gentle Medium Steep • Have a go at marking the gentle slope spirals with GREEN AND YELLOW tape • Number them in pen • Have a go at marking the medium slope spirals with BLACK tape • Number them in pen • Have a go at marking the steep slope spirals with CREAM tape • Number them in pen Fibonacci sequence 0,1,1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377 Beauty in nature is simply a mathematical equation Leonardo of Pisa, known as Fibonacci, introduced a sequence Fibonacci sequence of numbers to Western civilisation in 1202. This sequence, called the Fibonacci sequence, reveals a series of relationships that reflects much of the physical structure of nature. Fibonacci spirals 0,1,1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377 Fibonacci sequence in nature video Beauty of maths Link Yesterday was Fibonacci Day Any ideas why? Beauty of maths