Now you have a module area with some content in it. How do you make sure other people have access to it?
If you have appropriate access to a module area, you can see who is enrolled on it by going to Settings>Users>Enrolled Users. This will list all the people who are enrolled on your module area and what level of access they have.
You can also give people access to your module area by using the Enrol Users button.
Generally speaking, students are not enrolled this way. They are automatically enrolled on module areas through information taken from the student record system.