Pro teachers can use different progress views to look at student quiz scores. You'll also be able to download your scores into an Excel or .CSV file. To access your class' quiz scores Click on "Class Progress" and " Quiz Scores."
You can view the data for your class' quiz scores using the Heat Map, Percent, and the Raw Score. Raw Scores are shown below.
If you click on a Quiz you can also see a breakdown of each student and get more information.