It's not as much paper as you'd think! Tape the pages together to make a HUGE thermometer for the hallway. Have you kids research Celsius temperatures around the universe. Have them place it on a post-it note and place it on the number line thermometer. Any temps above 6000 degrees can be placed on the last piece of paper. I always calculate (with the students) how much paper we would need to measure those temperatures using our paper model.