Grading rubrics can be found in the Grades section of the course in Schoology located on the left-hand side. After you are on the Grades page, you can click on the four small boxes next to the assignment grade. This will bring up a a description of the criteria for the grade as well as the rating. The rating section will break down exactly what each section is worth.
If the instructor has graded the assignment you will be able to view each criteria and the points awarded.