instrumentalism

Instrumentalism is the name of a modern school of thought developed by scientists and philosophers in the 20th century. It sought to make traditional logic more useful for developing scientific and technological knowledge—a goal it shared with other schools such as Positivism, Pragmatism, Operationalism, Behaviorism, Experimentalism. All these schools denied that rules of logic express intrinsic deductive truths. They treated logical forms such as deduction and induction as verbal "tools-of-the-trade" of thinking and problem solving.

According to Webster's Dictionary, advocates of instrumentalism held "a conception that the significant factor of a thing is its value as an instrument, ... the doctrine that ideas [theories] are instruments of action and that their usefulness determines their truth. Tools developed by advocates sought to eliminate the traditional divorce between theory and practice, ends and means, appraisal and description.

(wikipedia)

http://www.123rf.com/photo_16678577_abstract-word-cloud-for-instrumentalism-with-related-tags-and-terms.html

Asan Bibi, 9, (R) and her sister Salima,13, (L) stand in the hallway of Mirwais hospital October 13, 2009 Kandahar, Afghanistan. Both were burned when a helicopter fired into their tent in the middle of the night on October 3rd, according to their father. Three members of the family were killed in the incident. The family belongs to the Kuchi ethnic tribe, nomads living in tents out in the open desert whom are very vulnerable to a war they have little understanding of. The Taliban are now staging suicide attacks and IED blasts in densely populated areas to create a bigger impact as more of Afghan's war wounded hit the headlines (Photo: Paula Bronstein/Getty Images.)

to me intrumentalism is a photo with intent to change something a perception, a theory to point out something thats wrong with the hopes of changing it.

image: Photo of the atomic bombing of Nagasaki, Japan, 1945. From the Library of Congress.