Here please find some information for your own coordination and scheduling: 

• To go through this entire module which contains four units, you will need about 4 to 6 hours.
• Of course you don't have to go through the whole course at once, but you can divide it in as many session as you wish.
• You can enter a lesson as many times as you'd like to.
• Every unit consists of an overview, a self-assessment test and several lessons. 
  
• For the most important topics, there will be additional practice lessons that help you deepening your understanding. 
  
• During the course of this module, you will benefit from a number of learning tools in the lessons, including many graphics, videos and interactive elements.
• Links: there are many links which either refer to other pages within this course, open pop-up windows of the glossary, enable downloads or refer you to other external websites. Please note that some links open in a new tab or window.