Once you have the modules set up and things in them - like pages, quizzes, discussion boards - you can set it so that students have to finish things in Module 1 before they go into Module 2....and then they have to finish things in module 2 before they go to module 3 and so on.
Is that what you are looking for in terms of pacing?
If yes, to control how they go from module to module, you have to click the 3 verticle dots at the end of the name of the module and select "Edit" - below is a screen shot of the module called "Introductions and Information"

Click Edit.
A small screen called Edit Module Settings will pop up on the right. At the bottom, you can put in a pre-requisite - click on + Requirement - and select something the student has to do before this module opens up.
As you look down the pop up window, you will see Complete ALL or Complete One. Pick whichever one you want them to do (complete all of the activities in the module or pick only one they must do). If you pick Complete All, it should show you everything that is in the module (the discussion boards, pages, quizzes, assignments, etc.).
go through each item (page, discussion board, quiz, etc.) and decide if the student should view the item, mark as done, contribute to the page, submit the assignment or score at least... [put in the score they need to complete this]
That way, the module will not be *done* until they do all of these things.
On the following/subsequent module, do the same but give it a pre-requisite by hitting + Requirement - and then select that the student has to do the first module (in this case Introductions and Information) and complete it before opening up this next module.
Play around with the Edit settings, and you will see how to set the path to open the modules.