I believe that having students create their own classroom rules can make a huge difference in the classroom. I like how this idea titled it "class promise" and had the students pictures around it. This shows unity and sincerity among students.
Whether you're hanging shiny red ornaments on fragrant green Christmas trees or mounting pretty green pine wreaths adorned with lovely red bows, red and green are the colors of Christmas. But don't feel limited to these classics when decking the halls.