no, not in that detail. A general outline of a tree (to represent tree-like relationships) would work, though I don't think a picture would be useful in that si

no, not in that detail. A general outline of a tree (to represent tree-like relationships) would work, though I don't think a picture would be useful in that situation. For school, geometry and so on, touchable pictures exist and are useful, though. That's one of the few areas where a graphical representation surpasses a textual description.