Here is a quick activity I often do with young learners or lower level students. It’s a quick way to highlight the difference between relational and verbal clauses.
All you need is two sets of animal cards (or any semantic set really), one with the picture and one with the name of the animal printed. The game is then a simple pelmanism game but, as they turn over each card, they have to say either ‘This is (Process: relational) a dog’ for the picture or ‘This says (Process: verbal) “dog”‘ for the printed word. It’s useful also to point out the difference between the relational ‘a dog’ with the article and how the verbal “dog” is said exactly as it is written without the article.