When you want to add an activity to your Moodle page, you may want its grade to be included in the Gradebook. In some cases, you might just want the students to do a practice activity that is not graded and that does not show up in the Gradebook.
To hide an assignment, both regular and Turnitin Assignment, from the Gradebook, open its settings and select "none" as grade type in the Grade section.
To hide the grade