What are blocks?
As a teacher you can add blocks to the side of your main learning area. In this course using the standard Boost theme the blocks are on the right. In this course with the different standard theme, Classic there are blocks on both sides and note that this course does not have the nav drawer. Check with your admin if your course has a theme different from the two here.
Blocks are elements which add extra information or learning content to your course. On a small screen blocks will move down underneath the course sections as here.
In our teacher, Sam's new course, there are no blocks at the moment but she can add blocks by turning on the editing and then clicking the add block link in the nav drawer. Here she can choose useful blocks to add to her course. Once added, blocks may be hidden or deleted from the gear menu. They may also be moved around with the crosshairs icon by clicking and holding the crosshairs icon and selecting a location to move them to or by simply dragging and dropping. Here for example Sam is moving the Latest badges block underneath the online users block.