Sunday, April 29, 2012

Web Hoaxes

I taught a lesson not too long ago about reliability of sources.

The web is good for this because there is so much that is unreliable.

Take this for example: http://zapatopi.net/treeoctopus/

The Pacific Northwest Tree Octopus?  Really?  I had students who were ready to believe this.

I also showed this one:

http://www.rythospital.com/clyven/

If you click the other tabs, you'll see the modified photo of a pregnant man.  That usually gets them, even if they accept the notion of a rat with human intelligence.

If they still think the mouse and the man are legitimate, you can google the name of the supposed hospital, and you get articles about the author, including the following from The Daily Scotsman:
Yes, the whole thing – as you will know already if you followed the story at the time – is an elaborate “installation” by the artist Virgil Wong. According to the biography on Wong’s own website, www.virgilwong.com, he is head of web design and development for New York-Presbyterian Hospital and Weill Cornell Medical College, which would explain both his knowledge of medical jargon and the painstakingly professional sheen of the Dwayne Medical Center website. He is also an artist and film-maker whose various projects “all revolve around his interests in medicine, technology and the human body”.

I tried googling this in front of the students, where the students could see the computer screen projected.  The results are not entirely clear.  Consider, for example, the article in USA Today about this:

http://www.usatoday.com/tech/webguide/hotsites/2003/2003-01-28-hotsites.htm

Dwayne Medical Center is listed first as a "hot site."  Is it true?  You can't really tell from this page.  In fact, I'm not sure if the writers at USA Today realized it was a hoax.

Snopes.com is a good place to go from here - a website that helps you evaluate good (or bad) hoaxes and urban legends.  There are some good examples of phishing scams there.

The focus, of course, is on developing strategies to verify and cross-check what you read on the Internet.  It also segues nicely into persuasive writing and research.

Saturday, April 28, 2012

Twitter in the Classroom?

So, I signed up for Twitter a few months ago, and I've become a big fan.  To my surprise, I was also given a school account by my district.  I was at a loss for how to use it at first, but then I thought about the hashtag concept.

If you aren't familiar, the "hashtag" is a way of making your "tweets" - the things you post on Twitter - instantly searchable.  If you tweet something with a hashtag that others are using, people can watch the feed for a specific hashtag, and they will see your contribution pop up as part of a conversation.  For example, a recent hashtag was #5words.  People tweeted a five-word phrase that they considered important or enlightening, and then tagged it.  Then everyone else could search for that hashtag, and follow the tweets as they came out.

So, it occurred to me, why not create a hashtag and use that to have an ongoing, synchronous conversation with another classroom?  I posted something about this on the English Companion Ning, and I had two or three responses almost instantly.  That was cool, but I had no idea what to do about that.  Now that I have the Twitter account, I don't know that I have the time to insert a text or unit that we can collaborate on with another classroom.  (As is usually the case, at this point in the year, I'm dumping cool ideas that I've been putting off, and trying to jam as many cool ideas and new ideas for next year into the classroom as I can before school is over.  Between the required stuff and the stuff I want, I don't have much room left.)

So, since that didn't work, I just started actually using it.  I felt like I had waited too long, and tried too many different propositions, and ended up wasting time.  So, I just started tweeting "cool sentences" on my school Twitter account.  Students volunteered these sentences, and I tweeted them.  I recently tried the #5words hashtag (though I didn't use the actual tag because I didn't want too much unwanted attention drawn to the school account), and that worked really well.

So, with five weeks left of school, I'm thinking about other ways to use this.

I think the goal for the next several weeks is going to be just tweeting as much student work as I can.  It should be - or it seems like it would best serve as - a student publication tool, of very short student texts.  So, I'm going to publish anything and everything that I can, without breaking district rules.

I would love to hear other ideas, if anyone has suggestions.

Friday, April 20, 2012

April is the cruelest month . . .

So I started something on Twitter that represents a kind of mental fungus that I've been dealing with for several years.  It seems like a lot of bad stuff happens in April.  Perhaps we can blame Eliot's The Waste Land for starting the idea, perhaps not.

Anyway, here is the beginning of a list of things (mostly bad) that happened in April.

April 1st
- Beer Hall Putsch (Hitler's first power grab)
- Marvin Gaye shot and killed by his own father

April 2nd
- Pope John Paul II dies
- Argentina invades the Falkland islands

April 3rd
- Bruno Hauptmann is executed for kidnapping and murder of the Lindbergh baby
- the Unabomber is arrested

April 4th
- Assassination of Martin Luther King
- Second Battle of the Somme

April 5th
- Rosenbergs sentenced to death for spying
- Kurt Cobain commits suicide

April 6th
- US Declares war on Germany and enters WWI
- Oscar Wilde arrested
- Black Hawk War begins

April 7th
- Rwandan civil war begins

April 9th
- Civil War ends at Appomattox

April 10th
- Zapata is assassinated in Mexico
- Bataan Death March begins

April 11th
- Napoleon exiled to Elba
- Idi Amin is overthrown
- US troops liberate Buchenwald concentration camp

April 12th
- Civil War begins
- Franklin Roosevelt dies
- Galileo is convicted of heresy

April 13th
- Amritsar Massacre
- Apollo 13 oxygen tank explodes

April 14th
- Lincoln is shot
- Titanic hits iceberg
- US bombs Libya
- Soviets announce withdrawal from Afghanistan
- Major Dust Bowl storm strikes

April 15th
- Pol Pot dies
- Sacco and Vanzetti receive national press

April 16th
- Virginia Tech massacre
- Lenin returns from exile to Russia

April 17th
- Bay of Pigs invasion
- Ben Franklin dies
- Khmer Rouge seize power in Cambodia

April 18th
- Great San Francisco Earthquake
- Bombing of US Embassy in Beirut

April 19th
- Warsaw Uprising
- David Kuresh and the Branch Davidian compound burns
- Oklahoma City bombing
- Lord Byron's untimely death in Greece

April 20th
- Columbine High School massacre
- Ludlow massacre of striking workers

April 21st
- Battle of San Jacinto

April 22nd
- Germans are first to use poison gas
- Pat Tillman killed by friendly fire in Afghanistan

April 23rd
- Easter Rebellion
- Failed hostage rescue mission in Iran

April 25th
- Invasion of Gallipoli begins

April 26th
- Chernobyl nuclear disaster

April 27th
- Afghan president is overthrown and murdered
- First multiracial elections held in South Africa

April 28th
- Mussolini executed
- Mutiny on the HMS Bounty

April 29th
- Rodney King trial verdict announced leading to riots in LA

April 30th
- Hitler commits suicide
- Monica Seles stabbed
- South Vietnam surrenders




Saturday, April 14, 2012

Research

Ah, research.  How the months have passed already.

I think that's the problem.  Other things happened, and now I'm rushing to finish teaching research methods and still have time for students to synthesize something from the research.

From this point, I'm starting to think about next year already, and planning how to start teaching research sooner.  Like most schools, sometimes there's a crush of teachers and students vying for computer lab time, and plans have to be modified.

I think the lesson here, for me, is that research is something that needs to be separated from computers, at least in part.  Too often research is seen as solely the province of computers, as if it can only be done with the aid of a computer.  Of course that's not true, since it was occurring long before we had these tools.  It does seem a bit cumbersome, though, to a generation of young people who conduct computer-based "research" so often, for so many things, on such a wide range of scales and projects.

Adding another layer to this shifting concept of "research," it seems, takes a little more careful planning and adapting than I had thought.

Monday, February 20, 2012

Andre Norton Nominees Announced

Here are the nominees for this year's Andre Norton award (an award from the Science Fiction/Fantasy Writers of America for the best Young Adult Fantasy and/or Science Fiction book from the previous year):

Andre Norton Award for Young Adult Science Fiction and FantasyBook
Usually these are good.

Here's a link to the SFWA site where this is posted.  You can also see the adult books that are nominated this year.  (Hate the innuendo there - stupid "adult book stores" have ruined that phrase.)

Saturday, February 18, 2012

DIVERGENT by Veronica Roth

I just read this book, and it was pretty good.  I didn't love everything about it, but I was engrossed within a few chapters and wasn't able to switch to a different book.

It's a dystopian future, with a factionalized community living in the Chicago area, divided into "tribes" or groups based on the virtues that they prize above others - Erudite, Dauntless, Amity, Candor, and Abnegation.  The main character, Beatrice (who renames herself Tris), lives among the Abnegation, but switches to Dauntless when given her choice.  She struggles to survive the training, and succeeds in the end, only to uncover a plot to disrupt the factionalized system and take over the community.  It's kind of an interesting twist, the way that the community is divided.  I also like the bizarre and cruel way that the Dauntless faction trains its recruits and prepares them for the life they will lead.  I like that there are a lot of unanswered questions left for future books, and I might be curious enough to pick up the second book and continue reading.  But I'm not sure that this is anywhere near as interesting as the books that are becoming the gold standard for me - Hunger Games, the Chaos Walking series, and Fablehaven.  (Maybe Lightning Thief and Harry Potter belong in there too, but on a different level.)

It's surprising how many YA authors are trying to recreate this kind of book - I don't know if it was Harry Potter, Hunger Games, Twilight, or some other series that really pushed publishing and authors to consider this genre.  But it's exploding.  I can't keep up.

Thursday, January 26, 2012

Anti-Coal Facts

Found this site from the Union of Concerned Scientists.

Air Pollution from Coal:

  • 3,700,000 tons of carbon dioxide (CO2), the primary human cause of global warming--as much carbon dioxide as cutting down 161 million trees.
  • 10,000 tons of sulfur dioxide (SO2), which causes acid rain that damages forests, lakes, and buildings, and forms small airborne particles that can penetrate deep into lungs.
  • 500 tons of small airborne particles, which can cause chronic bronchitis, aggravated asthma, and premature death, as well as haze obstructing visibility.
  • 10,200 tons of nitrogen oxide (NOx), as much as would be emitted by half a million late-model cars. NOx leads to formation of ozone (smog) which inflames the lungs, burning through lung tissue making people more susceptible to respiratory illness.
  • 720 tons of carbon monoxide (CO), which causes headaches and place additional stress on people with heart disease.
  • 220 tons of hydrocarbons, volatile organic compounds (VOC), which form ozone.
  • 170 pounds of mercury, where just 1/70th of a teaspoon deposited on a 25-acre lake can make the fish unsafe to eat.
  • 225 pounds of arsenic, which will cause cancer in one out of 100 people who drink water containing 50 parts per billion.
  • 114 pounds of lead, 4 pounds of cadmium, other toxic heavy metals, and trace amounts of uranium.


  • Waste generated:


    Solid wasteWaste created by a typical 500-megawatt coal plant includes more than 125,000 tons of ash and 193,000 tons of sludge from the smokestack scrubber each year. Nationally, more than 75% of this waste is disposed of in unlined, unmonitored onsite landfills and surface impoundments.
    Toxic substances in the waste -- including arsenic, mercury, chromium, and cadmium -- can contaminate drinking water supplies and damage vital human organs and the nervous system. One study found that one out of every 100 children who drink groundwater contaminated with arsenic from coal power plant wastes were at risk of developing cancer. Ecosystems too have been damaged -- sometimes severely or permanently -- by the disposal of coal plant waste.
    Cooling water discharge
    Once the 2.2 billion gallons of water have cycled through the coal-fired power plant, they are released back into the lake, river, or ocean. This water is hotter (by up to 20-25° F) than the water that receives it. This "thermal pollution" can decrease fertility and increase heart rates in fish. Typically, power plants also add chlorine or other toxic chemicals to their cooling water to decrease algae growth. These chemicals are also discharged back into the environment.
    Waste heat
    Much of the heat produced from burning coal is wasted. A typical coal power plant uses only 33-35% of the coal's heat to produce electricity. The majority of the heat is released into the atmosphere or absorbed by the cooling water.
     
    Environmental Impact:
    Coal mining
    About 60% of U.S. coal is stripped from the earth in surface mines; the rest comes from underground mines. Surface coal mining may dramatically alter the landscape. Coal companies throughout Appalachia often remove entire mountain tops to expose the coal below. The wastes are generally dumped in valleys and streams.
    In West Virginia, more than 300,000 acres of hardwood forests (half the size of Rhode Island) and 1,000 miles of streams have been destroyed by this practice.
    Underground mining is one of the most hazardous of occupations, killing and injuring many in accidents, and causing chronic health problems.
    Coal transportation
    A typical coal plant requires 40 railroad cars to supply 1.4 million tons in a year. That's 14,600 railroad cars a year.
    Railroad locomotives, which rely on diesel fuel, emit nearly 1 million tons of nitrogen oxide (NOx) and 52,000 tons of coarse and small particles in the United States. Coal dust blowing from coal trains contributes particulate matter to the air.
    Coal storage
    Coal burned by power plants is typically stored onsite in uncovered piles. Dust blown from coal piles irritates the lungs and often settles on nearby houses and yards. Rainfall creates runoff from coal piles. This runoff contains pollutants that can contaminate land and water.

    Water Use:
    A typical 500-megawatt coal-fired power plant draws about 2.2 billion gallons of water each year from nearby water bodies, such as lakes, rivers, or oceans, to create steam for turning its turbines. This is enough water to support a city of approximately 250,000 people. 
    When this water is drawn into the power plant, 21 million fish eggs, fish larvae, and juvenile fish may also come along with it -- and that's the average for a single species in just one year. In addition, EPA estimates that up to 1.5 million adult fish a year may become trapped against the intake structures. Many of these fish are injured or die in the process.