Okay...so here is something new I am trying out this year....
We have always had an 11 finger WOO (in case you haven't heard of it, that's a ten finger WOO, then you do a one finger WOOP after)
Soooo...this year I am going higher and using it for adding the teens.
For example, I will say "Let's give our friends a 12 finger WOO, twelve is....."
and the kids say "10 plus 2!"
We are all the way up to 15. Of course I had to do a lot of modeling where I would say "Let's give a 12 finger WOO. Twelve is 10 plus two!". But now they are able to say it and figure it out up to 15. WE still incorporate the festive WOOS, just going up to 15. (For example, for October, we did a spooky 10 finger BOO! and for November were doing a 10 finger Gobble. Now we just add a few more boos and gobbles!)
We'll see what this looks like at the end of the year and where it takes us!