Have you ever gotten this question? I have! I have created for my first graders a "How Am I Doing?" resource that I send home to my parents 1 time a week. This is an editable resource that is in my TPT store. It has been such a huge help for me to communicate with parents! What I did was I took each Common Core Standard and listed it - with a QUICK grading rubric. I then added a comments section that I could EASILY type up a SHORT narrative for parents who wanted more information on their student's progress.
Finally when I am all done I print each concept on coordinating card stock (this is easier for me to remember which ones are math and which ones are reading). I then cut in half and send home with a parent letter (one is also included in the pack). I have also included 2 styles of grading. One is letter grading as you can see in the example below and one uses the numbers 1-4. These are completely editable for comments and grading for you to send home to your families! Check it out!
I hope you enjoy this resource! I am always looking for new ways to communicate with parents that is helpful!