Another one of my goals this year is to complete 52 pins on Pinterest. So I went through my pins to see if I could isolate the ones I wanted to try and a video I had pinned last year about a secret door foldable jumped out at me. The video can be found HERE.
I decided to try it out using 8 1/2 x 11 card stock (the teacher used larger construction paper) and I tried it using half of the card stock (kids love things in miniature!). Both turned out cute and were very easy to do...although I might pre-cut the strips for students.
I choose the topic "The Moon" for both. I have a friend who is going into Astronomy in the next quarter and thought I could talk her into trying it with her students if she saw the samples. I was also thinking that a child could do a large one for a larger topic, i.e. The Solar System, and a smaller one for a part of the larger topic, i.e. Earth (I also thought the larger one could be a habitat and the smaller one an animal in that habitat).
Because the foldable flips open to a secret picture it really can't be glued into the notebook. You can easily slide them into a plastic bag that then gets taped into the book (I have done that several times).