As I came back from the cafeteria with my orange chicken, noodles, and strawberry milk, I noticed that my entryway calendar needed updating. I decided to try a trick that a new teacher had taught me.
If dry erase marker is caked on, don’t bust out the film-destroying water yet. Color over what is caked on and then mysteriously wipe away the writing. (If you don’t do it mysteriously, it drastically reduces your success rate.)
Maybe you’ve done this before, but with years of teaching experience under my belt, I still hadn’t heard of this.