This PowerPoint uses a Tree Map (Thinking Maps model) to teach students about nouns. It includes subjective, objective, and possessive cases, singular and plural, and common and proper nouns.
Separate PowerPoints are available to show students step-by-step instructions of how to build sentences.
Check out the free WWW1 downloads: Teaching and Practice: Subjects and Power Verbs & Assessing Subjects and Power Verbs. (WWW stands for Wonderful Words of the Week, my process of teaching students how to build sentences with common language.)