There are a number of options on the grading tool bar that you can use to leave feedback on assessments. The grading tool bar can be viewed once you enter the grading interface of a question from the dashboard.
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Note: if you have used the text question type in your assessment, the familiar grading tools (pencil, check, x) are not available.
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See also https://crowdmark.com/help/grading-tools/ and also this video “Grading with Crowdmark” https://www.youtube.com/watch?v=qffoadRFI_c
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