New apple magic keyboard's function keys don't work

I am running Yosemite.

I just purchased the new keyboard and paired it with my Macbook Pro.

When I press the Volume up key, it just takes me to the dashboard. It doesn't matter if I press the fn key in the lower left or not.

The Volume down key shows the desktop.

I have updated all software on my mac, except going to El Capitan. I don't want to do that yet.