When you have entered a course, you will see the course page.
Most Moodle course pages are made up of three columns (although sometimes teachers may modify the view to two columns). The left column contains small boxes called blocks (See the blocks overview) that are mostly of administrative nature. The right column has blocks that are mostly of an informative nature, while the middle column contains the course material and activity tools.
Each Moodle page has a horizontal navigation bar at the top. The navigation bar tells you where you are in the course and it allows you to return to the course page (if you click the short name for the course) at any time.
The course page depicted above has the layout of blocks according to the available Moodle template. The actual number and order of blocks in your courses may differ, depending on the needs of the teacher and the course.
The course material (resources and activities) on the course page are divided over one or more big blocks in the central column. These are called topics. During a course the teacher can hide and reveal or highlight topics in accordance with the timetable. If a course has many topics, you can limit your scrolling by collapsing the topic list to one topic (the one that you are using). This is done by clicking the square in the upper right corner of the topic.
To restore the topics list, you click the double squares in the selected topic (Keep this in mind in case you have accidentally collapsed the topics list!)