Plural Possessive nouns can be tough to master, and my kids needed some extra credit. I offered this to those willing to practice using plural possessives correctly. It has a variety of keywords for them to use in sentences, and a place to write the possessive form (for partial credit). It really helped the students who needed extra practice. I chose the keywords to be as interesting as I could, including "dragon" and "ninja". It was fun to read the sentences they came up with!
This page can be used as extra credit, the way we used it, or as class practice, a formative assessment (reduced items!), or however you can use extra practice. It would also be very useful for tutoring or a study guide.