This year we joined a preschool co-op with our homeschool group. We meet once a week, and so far it's been great. Three enjoys it, and Four....well, he likes the playing after. :) This is a picture from co-op where we did "nature painting." Here is Three painting a leaf, and a stick with a feather.
I used the boys hand/arm to make the tree trunk by painting them brown. I put out "fall" colored paint--red/yellow/orange/green--and they dipped fingers in and made leaves using their fingertips. You can see (the top one) where Three made "falling leaves" in a line. :)
I added some fall items to our "oatmeal box." I put in a few leaves that are bright fall colors, some pine straw, some acorns and a small pinecone. The oatmeal box is a small box I bought at $Tree with a flip top lid. I filled it with dry oats, and try to switch out the small objects inside it. The boys will take a spoon (or their hands) and dig through the oatmeal to find the "prizes." It's usually a messy activity...but the clean up only involves a vacuum, and the large thing of generic oats is a buck.
I wrote out some "simple story problems" for Three to work on. Things like:
The squirrels are getting ready for winter. Brown squirrel collected 4 acorns. Grey squirrel collected 2 acorns. How many acorns do the squirrels have?
We'll work on learning what the "+" and "=" signs mean, as well as simple addition.
I printed these onto cardstock: http://scrapbooking.about.com/od/layouts/ig/Rebecca-s-Fall-Leaf-Layout/Fall-Leaf-Pattern.htm and let the boys finger paint on them with brown/orange/red/yellow...then I let them dry and cut the shapes out and hung them in the window.
Three did a leaf craft that I ordered from Oriental Trading (a couple years ago actually) that could be easily replicated. Cut out a leaf shape, and you would paint it with glue, and add small pieces of tissue paper crumpled up in fall colors. It's hanging in our window, but I don't have a picture.
In the spirit of thanksgiving, I'm putting up a tree trunk in the window, and from now until thanksgiving we will be adding one leaf a day with something we are thankful for written on it. I've been doing it since the girls were Three's age (sigh...8 years ago.) I used the same leaf templates from above to cut out leaves in orange/yellow/red to write our gratitude on.