Why did the Han Dynasty collapse?

This 25-slide PowerPoint begins with an odd one out Starter Activity in which students pick out one misconception about the Han Dynasty. They are then introduced to the lesson title and graduated aims (all will/most will/some will). There is then some background information to enable teacher exposition. This is followed by a series of slides in which 12 people offer reasons for the collapse, some of which relate to internal problems (taxes, loss of traditional values, etc.) and some of which relate to external pressures (bandits on the Silk Road, attacks by nomadic tribes such as Xiongnu, etc.). Students act as journalists and jot down notes from these characters before using the information to create a newspaper to answer the Key Question. The lesson objectives are revisited, and the lesson concludes with a plenary in which the class is asked to come up with eight reasons for the collapse of the Han Dynasty and to write them on a flower with eight petals. I created this lesson while I taught History in China, and it was designed for high school students. It is written in UK English.