The teachers I loved most always told me that your classroom should feel like an interactive museum.
Posters of famous paintings and political figures hang on every wall. Since my kids were learning about museums - I decided that this would be the perfect time to make an aquarium and dinosaur display. The kids had a great time, and it really stretched their ability to communicate with each other in English.
Each student made one sea animal for the aquarium window.
Each student was responsible for one part of the dinosaur fossil.