We looked at the two spirals in a pine cone,
cut apples and lemons in half and explored the segments (they are both supposed to be Fibonacci numbers although our lemon was a freak and had nine segments not eight),
and attempted a modelling of the rabbit problem.
The girls were quick to point out that Fibonacci may have been a great mathematician but he wasn't a good biologist, in their words " if you tried to bread loads of rabbits from just two they would be sick and die from genetics".
We then explored the Golden ratio (if you divide a number in the Fibonacci sequence by the number immediately before it - i.e 21 divided by 13 - your answer is a number close to the golden ratio) and examples of the Golden Spiral in nature.
I also downloaded the 'Dragon Box' math app this week and I can't get the kids off it : )
If you haven't seen it then it definitely worth a look - it claims to secretly teach algebra to your kids. Mine are addicted and after playing it myself I can see why, it's simple to play and really does hammer home the process much better than a page of drills ever would.
I also read a great measurement book with Rose.
It has encouraged her to 'measuremeter' everything she could find this week : )