We tend to remember,

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  • 10% of what we read - eg. books, articles, research journals, etc
  • 20% of what we listen to - eg. podcasts
  • 30% of what we see - eg. pictures
  • 50% of what we see and listen - eg. movies, online courses, exhibitions
  • 70% of what we say, write, and discuss - eg. participating in a discussion, writing blogs, giving talks or presentations
  • 90% of what we say, do, and actively interact with - eg. teaching

This is known as learning pyramid or cone of experience, developed by Edgar Dale.