juxtaposition

oh man!this is by far the most interesting topic we have ever discussed in class.Juxtaposition means;

1.	an act or instance of placing close together or side by side, esp. for comparison or contrast.

2.	the state of being close together or side by side.

sources :http://dictionary.reference.com/browse/juxtaposition

class exercise:
(make 2 list of objects side by side,then number them.later choose randomly any two and pair them)
Example is the illustration on the left.