While there are many different ways to organize your course. Once you choose your strategy, the best thing you can do for your students is to implement it as consistently as possible. Like in-person students who get in the habit of going to class at the same time and the same place every week, online students need to form those same habits to maintain consistent performance across the semester. Making sure that, as much as possible, assignments are due on the same day of the week and modules begin on the same day of the week goes a long way to providing structure.
If students can't find and use what they need in the course, they can't do what you are asking them to do or learn what you are asking them to learn. Usability refers to the ease with which an individual can navigate, understand, learn, and use something. In this case, the something is your course, and the individuals are your students. Ensuring that all parts of your class are in a logical order, consistently structured, easily findable, and visually uncluttered reduces student frustration and can improve motivation and learning.
We recommend organizing your course in weekly or bi-weekly Modules to provide a clear and consistent structure and improved findability. Using Modules also allows you to deactivate other tools such as Discussions, Assignments, Quizzes, Files, etc., giving students one place to find everything related to that module. A module overview page allows you to introduce the module, connect it with what has come before, and explain what they are to do that week. Linking to documents and other web pages in the overview as opposed to adding them as individual module elements reduces the length of your module and allows you to annotate each reference.