moodle/lang/en/help/summaries.html

<p align=center><b>Topic/Week summaries</b></p>

<p>The idea of a topic summary is a very short text to prepare students
   for the activities within this topic (or week).</p>

<p>Each summary should be very short so that the course page doesn't become too long.</p>

<p>If you find yourself wanting to say more than a sentence or two then 
   consider adding a resource to this topic instead (for example, the first activity
   might be a page called <b>About This Topic</b>).</p>