Those of us who teach pre-k would love any ideas for lessons you may
have!!
Here is one I've used:
I collect as many pairs of medical tweezers as I can. (Luckily I have
several relatives that are physicians.)
I have several primary colors of paint poured out onto shallow plastic
lids.
Demonstrate how to use the tweezers to pick up cotton balls, dip them in
the paint, and create artwork on 12 x 18" paper!
I have a lot of cotton balls available, as well. We also use this lesson
to what how the colors change when you mix, etc.
It is great for fine motor! Some children do better with larger
tweezers. I have clothes pins available as well. Some of the younger
children are not developmental ready for small tweezers.