To recognise and explain a
Maths is exciting!!!!!
It links to the
It is not
just ‘made up’?
Many of our
ancestors have been
theories for millions
Have you ever wondered how many
spirals a sunflower centre has?
Well, it is all to do with a number sequence which was
discovered over 8000 years ago by an Italian mathematician
called Leonardo Fibonacci.
He discovered this number sequence
0 1 1 2 3 5 8 13 21
What are the next numbers in this
Can you work out the rule for this
How can we record our findings?
The next numbers are
34 55 89 144 233 377 610 987 1597
So what is the rule?
This number sequence is called
Ok, so how does this link to sunflowers
On many plants, the
number of petals is
a Fibonacci number
and the seed
sunflowers has a
Put a line under any number in the
sequence. Add up all the numbers above
What do you notice?
Is this true every time?
How can we record our results?
Steps to success
•Work co-operatively with your
•Read the problem carefully;
•Think of a logical way to calculate
•Ask for help if unsure
Take any three numbers in the sequence.
Multiply the middle number by itself.
Then multiply the first and the third
Try this a few times.
Do the answers have something in
Are there any numbers that do not fit
Tip: Use a
Fibonacci’s number pattern can also be
seen elsewhere in nature:
•with the rabbit population
•with snail shells
•with the bones in your fingers
•with pine cones
•with the stars in the solar system
If you have time tonight
Google Fibonacci and see
where else his number