Interact is very flexible when it comes to constructing your space. You start adding components to your space using the green + a the top of the navigation bar.
Because you can place any component anywhere, on the navigation, or within folders and groups, it is entirely up to you how your content is structured. You might have a folder for content and a folder for discussion, or you could have the discussion areas included within the relevant content area. You could have a folder for each week of a course, or a folder for each subject area.
To see some examples of how spaces can be structured have a look at the Interact project website Example Spaces area.
Below are some tips for getting started constructing your Interact space:
Plan your space out on paper. Work out how the content will be structured, what the main navigation links will be, and how folders might be nested in order to logically structure your content. Always think about how the user is going to find the information they are looking for in your space. Having a plan will help to avoid having move and change things after you have started.
Try to keep the options in the navigation to a minimum. Having a very long list of options in the navigation can be overwhelming for users. Also, use the heading component to break up items in the navigation into logical groupings and the sort order setting to make the items display in a logical order.
When setting component sort orders, add them in blocks of 5, eg. 5, 10, 15, 20. This allows you to easily slot new items into the sort order without having to re-order them all.