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6.3 Length of a Course
  1. Optimally you should break courses into:
    1. A chapter should take 15 to 20 minutes
    1. A course should include no more then five chapters
  1. Breaking courses up this way allows employees to take a chapter a day and finish a course in a week.
It's True! It's True! Most people have a hard time concentrating for more then 15 to 20 minutes at a time.