The first are welcome posters. This year I put the 7th and 8th grade ones on my door for the month of September. My school and 6-12, but my classroom happens to be near the high school rooms and I wanted my students to feel welcome in my room. I cut them out and laminated them.
The second are period labels. They are lettered and numbered as I know some schools use letters for their periods. Mine did last year, but this year we switched to numbers (very confusing for all).