Common Core is all about evidence! Standard One for all grades is all about showing the evidence! This is a great Anchor Chart for Textual Evidence Sentence Starters- I would modify the language required for upper elementary and middle school students.
A great visual rubric. I love this! It is so important for students to see models! Using a rubric scale to compare weak and strong writing models is a great way for students to begin to reflect on their own writing!