There are a number of tools you can use to leave feedback on assessments:
Text comments, annotations and symbols can be added through the grading toolbar in the top left of the screen.
Click anywhere on the assessment page to open up a comment field. A comment can be dragged and dropped to another location on the page.
Comments support Markdown for formatting and LaTeX for math and chemical equations. To learn more about these options, see Adding comments.
Freeform annotations (drawing)
Click and drag anywhere on an assessment to write or draw on the page.
Click anywhere on an assessment to add a stamp.
Click and drag to create a semi-transparent box over student work.
Click on an annotation or stamp to delete it.
Selecting a color applies that color to future annotations, stamps, and highlight boxes.
Manage, add and share comments on a particular question using the comment library. To learn more, see Managing comments.
Using keyboard shortcuts can make grading more efficient. Click on in the top right of the screen to see the list of shortcuts.