The school arranges classrooms for me to draw.

Although it is sketch paper, try not to sketch, so the effect of blackboard newspaper is not good. I suggest you use mark strokes. As for what to draw, I'm not sure about the theme of your blackboard newspaper. It's best to draw a theme related to the theme. As a freshman, you can draw something positive and feel like a poster. Of course, you can add some artistic words, such as new school, new beginning and other slogans.