Here are the basic steps required for me to design your course:
ADDIE is the optimal training method for large and complex courses. ADDIE was derived from the systems design used to execute the D-Day landings in Normandy during WWII. ADDIE was invented at Florida State University and has been used by the United States Armed Forces since 1975. In Canada, ADDIE is used by Athabasca University and Thompson Rivers University. In the United Kingdom, the Open University uses ADDIE. In the Netherlands, OU uses ADDIE. ADDIE is the gold standard for instructional design.
However, if your course is small and its setting will be casual, there are faster and cheaper methods of design that we can discuss, such as SAM, Rapid eLearning, ASPIRE, and Understanding by Design (UbD).