Coherence principle 

Students learn better when unrelated words, images and sounds are excluded than when they are embedded.

Keep the content as simple as possible and don’t embellish unnecessarily with background noise, extra text or graphic material. Keep the visual elements limited to what is strictly necessary with a minimum of elements displayed at the same time. This allows your learner to achieve better learning outcomes.

Ideally, your e-learning does not include:

  • Strange noises such as background music or sound
  • Images, illustrations and videos which are not essential for the content of your course
  • Details or interesting stories that do not belong to the essence of your course


  • Simple visual illustrations that help your student to gain insight into the matter
  • The core content, displayed by means of a minimum of words and graphic images