This is a great product to use to introduce subject-verb agreement. There are several anchor charts included. I've included the rules for the subject and verb to agree that correlate with the Harcourt Trophies Second Grade Curriculum. There is also a great whole group game included. My students love using "thumbs up" / "thumbs down" when choosing an answer I ask the whole class. I've included 6 sentences with a blank space for the verb. Students must choose "thumbs up" if a verb with an s added is correct or "thumbs down" if a verb with a s added is correct.