With this wall-display, you can teach the seasons and some vocabulary related to them. When a season comes, you make a part of your final window. Just glue name of the season on top of the corresponding rectangle and the tree in the centre of it and give each student a leaf (for Autumn), a raindrop (for Winter), a butterfly or a flower (for Spring) - I prefer the butterfly - and an apple (for Summer).
The students colour the picture, cut it, and one at a time, they glue it on the seasons wall-display. It's a good idea to ask the students to say the word before gluing the picture. If a student doesn't remember the word, I ask him/her to go back to his/her place and try to remember it (usually the classmates tell him/her the word and the student tries hard to memorize it to be able to glue it on the wall-display!).
If you want to make your seasons wall-display to last longer and be reusable, just laminate the window after gluing the trees and ask your students to glue the pictures with blue-tack instead of glue. That way you can easily remove the pictures after the schoolyear and use it again.
(The tree is the same as the one I used for Autumn, that's why it doesn't come in this file.)
Here you can download a pdf document with all the seasons.