The unitary method is a technique in elementary algebra for solving a class of problems in variation. It consists of altering one of the variables to a single unit, i.e. 1, and then performing the operation necessary to alter it to the desired value.
For example, to solve the problem. 'A man walks seven miles in two hours. What is his average speed?', we aim to calculate how far the man walks in one hour. We can safely assume that he would walk half the distance in half the time. In one hour (one half of two hours) he walks three and a half miles (one half of seven miles). His speed is therefore three and a half miles per hour.
In journalism, a human interest story is a feature story that discusses a person or people in an emotional way. It presents people and their problems, concerns, or achievements in a way that brings about interest, sympathy or motivation in the reader or viewer.
Human interest stories may be "the story behind the story" about an event, organization, or otherwise faceless historical happening, such as about the life of an individual soldier during wartime, an interview with a survivor of a natural disaster, a random act of kindness or profile of someone known for a career achievement.