Grammar Collection - Define Me: Non Defining Relative Clauses
Most course books for teens and adults will, at some point, cover non defining relative clauses. They aren't very exciting to learn, or sometimes practice.
Define Me is a great, controlled practice activity that gives your students the chance to practice what they've learnt by making sentences, using non defining relative clauses, about various celebrities from the present and past. They just roll the dice, land on a square and use the name of the person and the information about that person to make a sentence in anyway they see fit, as long as the use a non defining relative clause.