Here is the file folder I put together for our Apple Unit.  This way he can pull it out and play with it whenever he wants.  Here are some photos.

This is the first half of the folder.  I laminated the maze and the apple tree seasons sheet.  After we talk about the seasons of the apple tree and he colors the cards; I'll laminate those and stick them in the pouch I made for them. 

This is the second half.  On this page I put letter A's and circles for him to trace, both laminated.  On the one side I left it blank for when we look for things that start with the letter A.  He'll then glue the things on this flap. 

On the front is blank right now but I have a coloring page Aa is for apple that we'll glue on after he colors it.  On the back we are going to cut out and glue his coloring page for things that are red.

I'm making one for each letter we do.  I'm storing them in a cereal box that I cut to the shape of a magazine holder.  This way he can do it whenever he chooses.