Do you want to introduce noun clauses with example sentences? Here's a set of flashcard with pictures of noun clause sentences.
Although noun clauses are no more than simple sentences on their own, they are dependent clauses and make sentences as complex sentences when they are joined to them. For most learners, they are very complicated structures. They need to be examined and simplified by describing their roles in a sentence. It'll be much more comprehensible after explaining and marking their roles in a sentence.
The PowerPoint flashcard set is divided into three sections: Noun clauses as subjects, noun clauses as objects, and noun clauses as subjects complement. It'll be a great presentation when they are grouped according to their roles and highlighted in a single sentence.