What makes a lesson effective in a 5-10 sentences ?

An essay about how social media is bad for some young girls that use it for the wrong reasons

The knights of the round table were bound by the code of chivalry that called for loyalty to king, god, and lady.  in which set of lines from  sir gawain and the green knight  does sir gawain describe upholding this code?

In robert fosters birches what does the speaker think of when he sees birches bend left and right