Firstly, I believe I'm actually blogging now :) Not that I've never blogged before...
Anyway, back to the question: What is an exposition? Mr Yap claims that this is a "piece of cake', which I heartily disagree with :)
He meant the question though, haha.
Of course, knowing that this is an English assignment, I have neglected to write about other uses of the word 'exposition' in ways outside English - like the use of the term to refer to the first section of a fugue or sonata form in music, or an exposition which is in essence an exhibition where people go to a place to learn more about things.
Also, since I believe I'm in an English class and not an English Literature class, I will not be talking about the dialogue, description, etc. of a play or a novel that gives the audience or reader the background of the characters and the present situation. Oh, wait a minute, have I actually written about them?
So I went along rather happily and found this from the net, from http://www.bartleby.com/68/77/2377.html - the first thing I saw after googling for it -
"Exposition is explanation. Expository writing is nonfiction prose that sets forth ideas, facts, values, arguments, and the like."Sounds a bit too simplified for a question I thought to be deserving of an answer better than that, so I decided to elaborate. Yes, exposition is the explanation of a topic, which aims to expose the reader to new things about the topic he/she does not already know, and also includes the author's own personal point of view regarding the topic.
It goes on to add:
"Expository writing is a term used frequently to distinguish that sort of prose from the writing we often call creative..."Unlike what we know as creative writing, such as the kind of work we had been getting some time ago in Term 1 like anecdotes and personal narratives, an exposition (or expository writing) has a more rigid structure. There is a title, a thesis, argument(s) and ending off with a section called reiteration. Just in case some viewers of this blog learn better with graphics, here's one for you that I found at www.lmpc.edu.au. Enjoy!
Title Integrated pest management
Thesis position
preview -> 

argument1 

argument2 

argument3 

argument4 

argument5 

reiteration 

Whew, I think I've really exhausted the topic on what an exposition is now. That's all for now then. Stay tuned for more on expositions!
"Thank you class."
*Thank you sir.*
Haha.
acknowledgements.
(in no particular meritocratic order)
- EXPOSITORY WRITING, EXPOSITION. The Columbia Guide to Standard American English. 1993. Retrieved March 30, 2009, from Bartleby.com Web site: http://www.bartleby.com/68/77/2377.html
- exposition definition Dictionary.com. Retrieved March 30, 2009, from Dictionary.com Web site: http://dictionary.reference.com/browse/exposition
- Text type: Exposition. Retrieved March 30, 2009, from www.lmpc.edu.au Web site: http://www.lmpc.edu.au/resources/Science/research_projects/text_types/5_exposition_eg.html