The Dashboard has several main navigation areas: (see image below)
You can also Sort the course list:
You can easily get to the ten most recently accessed courses from the Recently Accessed Courses block. By default it will most likely appear below the Course Overview Block, but you can move it anywhere on the Dashboard page by the Customize this page button.
2. Click on the Compass icon to move a block. Click on the Gray gear icon to open an editing menu from which you can Hide or Delete. Click on Stop customizing this page to save changes and return to your normal Dashboard view.