If nothing else, I encourage teachers to simply begin talking about grading. Because if you're like many educators across the country, grading is a practice that is often kept private and even considered semi-sacred. But this mindset is exactly what has largely prevented the growth and improvement of teacher grading practices around the country for the last 100 years, while so many other practices have become more effective.
Practical Classroom Solutions to Grading, Assessment, & Feedback 