56.
Which is the main idea of the article?
A. Swine flu is spreading quickly
globally.
B. Swine flu is confirmed in New York City.
C. How does swine flu spread?
D. Many people died of swine flu in Mexico.
E
Computers
have been used in teaching for more than twenty years. But a new book says that
only now are they changing education. And it predicts that a lot more is about
to happen.
The
book is called “Disrupting Class: How Disruptive Innovation Will Change the Way
the World Learns.” “Disruptive innovation” is a theory developed by lead author
Clayton Christensen, a professor at the Harvard Business
School. He says
organizations almost always use new, creative technology only to continue what
they already do.
New
technology should change organizations, he says disrupt them in a good way.
They should use the technology to do things differently – for example, to serve
more needs. The new book says the needed disruptive force in education is
computer-based learning.
Michael
Horn, another author of “Disrupting Class”, told us about a Boston public school that he visited. Every
student at Lilla
G. Frederick
Middle School in Dorchester, Massachusetts,
has a laptop computer. One class was learning about storms. Michael Horn says
the laptops made it possible to truly individualize the lessons, to divide
materials by ability level and learning style. At the end, the students all
took part in a discussion led by the teacher.
Computer-based
learning includes online courses. Enrollments in online courses have grown
sharply. In 2007, the United States had about one million enrollments(登记为学员), not including
college courses. Students could be enrolled in more than one course, through
schools or education companies.
High
school students make up about seventy percent of the enrollments. Still,
nationally, only about one percent of all high school courses last year were
taught online.
But
the authors of “Disrupting Class” predict it will be ten percent in about six
years. And their research suggests that the number will be about fifty percent
by 2019. And Michael Horn says the future of online learning could be even greater
in developing countries.