====== KWL study method ======

https://lifehacker.com/use-the-kwl-study-method-to-learn-more-1850786565

  * Short of:
    * **K**now
    * **W**ant to know
    * **L**earn

  * based on constructivist theory:
    * people learn more when they are actively engaged rather than just passively receiving information

  * Make three columns (e.g. on the paper sheet)
    * Know
    * Want to know
    * Learn
  * If you don't know what will be in the column "What to know":
    * ask "what is it?"
    * check heading / subheadings / summaries of chapters etc.