A look at my logs had shown me that most of my users always go back to the course front page before going on to the next resource. A little informal survey confirmed that most users had not noticed that they can flip though the course with the next and previous buttons at the top right of the Moodle screens.
In an attempt to improve the situation, I am proposing two additional buttons in the footer of each Moodle page. After all it is at the bottom of the page that users would usually expect the button bringing them to the next page. Also the design of the arrows in the attached screenshot makes them more noticeable than the < and > buttons at the top.