In Word and HTML, you want to avoid combining tables, and cells if possible. In this example, you’ll see how JAWS screen reader reads these combined tables in a confusing and incomprehensible manner. The tables lack header rows. The two visual headings that exist, “Assignment” and “Maximum Grade” are formatted with the Bold button on the Word ribbon instead of making them into a Table Header Row through Table Properties.
This is a recreation of a real example I spotted in a course! Remember to avoid blank table cells also.