I had the opportunity to read a wonderful and super rich book about grading practices by Cathy Vatterott called Rethinking Grading: Meaningful Assessment for Standards-Based Learning.
The book is not only for those thinking bout implementing standards based grading. It has important, research based strategies that we should all be using in our classroom from crafting learning objectives, forms of assessment, and the power of feedback.
I put together some of my takeaways from the book in a single diagram. This image can't do justice to the depth of the book. My highlights covered over 10 pages in a Google Doc. So, search it out and dig in.
If you find errors in the doc, I'm always looking for help proofreading!