Mr. Putter and Tabby Walk the Dog: My second-grader had a simple homework sheet attached to his packet that became more complicated because it lacked any context whatsoever. There was a simple chart showing that sentences have two parts, a naming part and an action part. Following that, there was an 8 or sentence paragraph discussing a new puppy that came home. After the first sentence, most of the remaining sentences were missing the "naming part." Directions asked students to include a subject ---- or naming part. Without context, my son had no idea what he was being asked to do.
So this is what I came up with as an alternative.
I asked my son to complete the worksheet and witnessed first hand how a beloved story essentially taught the grammar.
It's a freebie for now, but after I get through my long list of books, I hope to compile something special for Cynthia Rylant's early chapter books.