In case you have accidentally deleted an assignment, they can be restored along with any grades that were entered.
The article details the process to restore (undelete) assignments using the Curriculum tab in Assign Work.
School Loop Plus
To restore the deleted assignment using the curriculum tab in Assign Work, follow the steps detailed below:
Login to the SchoolLoop Portal.
Navigate to the correct Classroom.
From the Curriculum tab of your Classroom, select the Add Content menu, and then choose Undelete Documents.
You can Select All or select a subset of content, and then click Undelete.
The restored content will show up at the end of the Content area in your Curriculum tab. It will be unpublished (not visible to students) by default.