Can children's watercolor pens draw on the magnetic whiteboard? Is the effect good?

No, because it can't be erased. Will destroy the whiteboard. You can choose a variety of colors of whiteboard pens. Let me give you the best advice. You know a kind of paper that we often use-big white paper, which is thicker, also called drawing paper. There are two pieces of paper that are completely open and there is not much money. Just stick them on the wall with wide tape. Make a good grid, one a day, and just draw. Generally, parents are needed to accompany them, which is equivalent to a good method of tutoring.