### Fibonacci maths activity

Pine cones are often used to make Christmas decorations so why not take a close look first - before you spray it gold, stick on a bow and turn it into a Christmas tree decoration!

- As a starter to this activity ask your class look at these patterns and give the next number in each of these number sequences.

It is a difficult rule and only a few will get it, adding consecutive numbers from the sequence, but once discovered or seen it is easy to remember.

**1, 1,**1+1=

**2,**1+2=

**3**, 2+3=

**5,**3+5=

**8**, 5+8 =

**13**

#### Back to the Christmas cones!

All cones grow in spirals. Start at the base of a cone and use gold or silver (or any colour) pens and follow the spiral as far up as possible. Now count all the spirals that start round the base, both of these cones had 8 spirals - a Fibonacci number!

If you can count the spirals going in the other direction (these were not clear on my cones), you will discover that the number of spirals is the next number in the Fibonacci sequence. If I could see them clearly there would be 13 spirals on these cones.

**Related articles:**

How much paper is needed to wrap a Christmas present?

Try using the least amount of paper to wrap each one.

How many ways can a star be drawn?

Using pairs of 2D shapes makes a variety of stars.

12 days of Christmas investigation

How many presents were given in total?

Make a star for Christmas

Folding paper to make a star.

Interestingly she draws in the gaps and I coloured the bumps.

If you search the internet for 'images Fibonacci cones' you will get lots of good examples to show your class.