Here's a great pic I found while digging through the treasure trove that is Pinterest. It belongs to a wiki all about foldables!
Click on the pic above to head to the wiki - it has instructions for making foldables in all content areas. You can join the wiki and contribute your own foldables.
Even better news - they have a link to a blog Get in the Fold that has lesson ideas, instructions and videos about using foldables! Heart.