Yes, teachers can see all the Writable scores auto-populate in Google Classroom, adjust them as needed, then click 'Return' to send scores to students when they are ready to make them "official".

To return a score in Google Classroom:

1. Click into the Writable assignment in Google Classroom, choose the students, and click 'Return'.
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2. Enter a comment for the student (optional) and click 'Return'.
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3. The student will now be able to see their score on the assignment page or on their list of assignments in Classwork: