In addition to whiteboards, PDFs and images can also be drawn upon. As the instructor, you have control over drawing permissions.
To control student access to drawing, click on the gear menu above the resource. Selecting “Student Can Edit” or “Students Can Draw” will allow students to draw and type on the resource. Selecting “Students Cannot Edit” or “Students Cannot Draw” prevents students from drawing.
On any resource, clicking the pencil icon will open the drawing tools. On the drawing toolbar, select the eraser icon and click ‘Clear All’ to erase all marks.