Use course tools>>Virtual Classroom>>Use whiteboard tools
You use two commands on the Whiteboard menu to format text and lines on the whiteboard:
Font – Specify whether you want bold or italics, the type of font, and the font size.
Line Width – Specify the width of the line you want to use for freehand drawing or the outline of shapes.
Typically, you select font and line formatting before you enter text or draw lines, shapes, or freehand on the whiteboard.