There are enough materials here for at least one lesson. You could easily make it last two or three lessons though.
Ended up using all these materials - thanks a lot!!
Today the weather was good so we went outside to put this into practice, counting stuff around the school. I've attached the PPT I used and handout I gave to the kids (they worked in groups of 4).
I can't guarantee the accuracy of the Korean on the last slide of the PPT as I wrote it myself - I usually teach this class alone but if you have a Korean teacher present to help you translate rules then you obviously won't need the last slide.
It says something like:
While doing activities outside of the English room:
1. Make sure you stay with your team!
2. Don't run!
3. Don't enter other classrooms!
4. Don't scream and shout!
5. Come back at the specified time!
(I've also attached the font used in the PPT - I use this for all my PPT's as it's easy to read for young kids - no funny shaped a's or g's etc. I highly recommend you install it)