Knowledge Organisers (KOs) are a very nifty, one page (usually) grid that can be used as a revision tool. They focus on facts, keywords, key terms and quotes, perhaps characters and their traits (if English focused KOs), and important definitions. Yes, they are therefore a good aide de memoir.
You can, much like flash cards and mind maps, use them to revise a topic and test yourself, or have other people test you. They are in that sense an essential tool and piece of educational armour that should not be left out.
What they don’t seem to include, however, are a range of questions in anticipation of an exam, that could require a whole different set of keywords, quotes, background contextual knowledge and facts, etc.
For example, if you can be certain that students will get a question on the Romeo and Juliet Shakespeare paper on ....continued here