I give the students this sheet once I have collected multiple assignments and have gotten a feel for some repeated grammatical offenses.
-I start every class with a Daily Edit where I put up a sentence from an anonymous student's assignment.
-Students copy down the sentence word for word as they see it on the board.
-We talk about the sentence and edit it together on the left hand side of the assignment.
-Then we create a declarative statement about the grammatical rule(s) that we reviewed for the day together and write the sentence on the right hand side of the assignment.