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fifteen to twenty students in an online class is probably ideal. For an established online class with an experienced online teacher, perhaps twenty-five or maybe even thirty students would be a workable number.
Whatever the nature of such an experience, it affects both the cognitive and the affective domains and is designed to change behavior profoundly - and for the better. Having had an experience, we are never the same. Our perceptual field is altered; our cognitive maps reconstructed.5 These are heady ideas, even for 21st-century schools.
So what then can an experience include? Whether within the classroom or outside, experiences require the active engagement of the learner. Experiences can never be had at arm's length. They must be lived, and they must evoke strong emotional response. And to derive meaning from experience requires us to reflect on experience, to reach for important understandings and meanings, to bring ourselves to new awareness, to sift through data and examine assumptions, and to build new concepts.


Authentic contexts in the classroom are more than simple examples from real-world practice that act as illustrations of a concept being taught. The context needs to be all-embracing, to provide the purpose and motivation for learning, and to provide a sustained and complex learning environment that can be explored at length. It needs to reflect the way the knowledge will ultimately be used, so it presents the whole environment first, rather than introducing elements one by one. Through the use of technology, it is possible to bring a range of authentic contexts into the classroom.
In an average young person’s online experience, the senses may be stimulated and the ego touched, but vocabulary doesn’t expand, memory doesn’t improve, analytic talents don’t develop, and erudition doesn’t ensue. (109)
For must young users, it is clear, the Web hasn’t made them better writers and readers, sharper interpreters and more discerning critics, more knowledgeable citizens and tasteful consumers. (110)
The major finding: “More than half the students failed to sort the information to clarify related material.” It graded the very communications skills Web 2.0, the Read/Write Web, supposedly instills, and “only a few test takers could accurately adapt material for a new audience.” (115)
..teenagers and young adults, in America today, are drowning in a tidal wave of teen, youth, stuff, delivered through digital tools, and the adult realities of history, civics, foreign affairs, politics, and fine arts can’t break through.
So
I tell her all this stuff, and I think, "Okay, we're going to
have a conversation about authority or social construction or
whatever." That wasn't her question. She heard this story and
she shook her head and said, "Where do people find the time?"
That was her question. And I just kind of snapped. And I said, "No
one who works in TV gets to ask that question. You know where the
time comes from. It comes from the cognitive surplus you've been
masking for 50 years."
So
how big is that surplus? So if you take Wikipedia as a kind of unit,
all of Wikipedia, the whole project--every page, every edit,
every talk page, every line of code, in every language that Wikipedia
exists in--that represents something like the cumulation of 100
million hours of human thought. I worked this out with Martin Wattenberg at IBM; it's a back-of-the-envelope calculation, but
it's the right order of magnitude, about 100 million hours of
thought.
And television
watching? Two hundred billion hours, in the U.S. alone, every year.
Put another way, now that we have a unit, that's 2,000 Wikipedia projects a
year spent watching television. Or put still another way, in the
U.S., we spend 100 million hours every weekend, just watching the ads.
This is a pretty big surplus. People asking, "Where do they
find the time?" when they're looking at things like Wikipedia
don't understand how tiny that entire project is, as a carve-out of
this asset that's finally being dragged into what Tim calls an
architecture of participation.