KWL

 I do not know anything about the nature of readability of the text. But I think that it is something related to reading a text (but I haven't idea about from which perspective such as grammar or vocabulary..) I want to learn it in order to use it in my future class because it seems very useful in reading a text.

From the activity, I learn that readability means how difficult or easy a tezt is to read it. When you copy the text and paste it to the site, it shows you a percentage of 'Flesh Reading Ease'. The higher avarage means more readability.