Corrected: A previous version of this story misstated the number of users that are estimated to be on Second Life at any given time. That number is 50,000.
For educators who think real life does not offer enough opportunities to practice their profession, there鈥檚 , an Internet-based virtual environment that counts thousands of educators among its enthusiasts.
Second Life bears a passing resemblance to an online game, with users represented by digitally drawn characters, called avatars, that can interact and engage in a vast array of activities. But a growing number of K-12 educators and groups have come to see the 3-D virtual environment as having educational potential that is very real.
鈥淭hink of Second Life as a world, an extension of the physical Earth, and a place where you will find a thriving educational community,鈥� said Peggy Sheehy, a teacher in New York state who has become a Second Life evangelist to the K-12 community.
Linden Research Inc., the San Francisco-based company that owns Second Life, considers education to be a core function of its virtual world, according to Claudia L鈥橝moreaux, an official at the company, which is commonly called Linden Lab.
The company offers educators a 50 percent discount on fees for using Second Life and has started the Second Life in Education listserv, known as SLED, which lists 5,000 鈥渞esidents,鈥� many of them precollegiate educators, Ms. L鈥橝moreaux said. Higher education institutions are there in even greater numbers, viewing Second Life, in part, as a marketing tool.
But Second Life, though it has been made more user-friendly over time, is still not for the technologically faint of heart. Getting involved requires climbing a steep learning curve.
Other caveats cited by experts include the costs of participating and the inability to transfer work from Second Life to other online environments.
Christopher J. Dede, a Harvard University education professor who is in an expert on the use of technology in education, said the older computers still common in schools are another limitation.
Participants in Second Life and other 鈥渧irtual worlds鈥� say the use of avatars and seemingly 3-D environments add a different dimension to their online lives. Popular uses of Second Life among educators include a range of communication, networking, and learning activities.
Meeting
Education groups, some of which exist outside of Second Life and others that operate there exclusively, offer lectures, seminars, and demonstrations that draw in participants from around the world. Less formally, virtual coffeehouse chats, concerts, and balls create settings for relaxed online contacts among educators.
Social Networking
Educators can choose from many of the hundreds of education-focused user groups that share conversations, resources, and activities.
Sharing Resources
Educators engage in professional development by passing around text documents, short videos, animations, and audio. While most of Second Life is barred to children, some schools have bought space for hosting student activities and instructional demonstrations on Second Life鈥檚 Teen Grid, which is off-limits to most adults and where access can be further limited to a school鈥檚 teachers and students.
Constructing
Participants are encouraged to create structures in 3-D that mimic real-life spaces and buildings, both in current and historical settings, or novel structures that help learners visualize data and concepts, such as science experiments or geometric shapes that users can manipulate. Second Life is full of designers and builders who tackle such projects, for hire and sometimes for free.
Filmmaking
The making of short videos, called machinima, has flourished in Second Life, especially on the Teen Grid, where students write scripts and film on virtual locations and sets.
鈥淢any school computers simply don鈥檛 have the video-processing capability to run Second Life,鈥� he said. 鈥淚ts footprint in schools is limited by that.鈥�
Second-Life Sabbatical
Though hundreds of virtual worlds exist鈥攎any of them specialized for games鈥擲econd Life stands out because of its effective marketing, which has helped create a 鈥減retty sizable population,鈥� said Aaron E. Walsh, the director of Immersive Education Initiative of the Grid Institute, a Boston-based company that focuses on virtual worlds.
Second Life nominally has 13 million members, though only a few hundred thousand are considered actively engaged. Around 50,000 users are online in Second Life at any given time, Mr. Walsh said.
One convert is Kevin Jarrett, a teacher in the K-4 computer lab at Northfield Community School, in Northfield, N.J. He spent six months on sabbatical exploring the educational potential of Second Life, financed by a $10,000 grant from the online Walden University.
鈥淚t was amazing, absolutely amazing,鈥� Mr. Jarrett said of the 20 to 30 hours a week he spent online. 鈥淓veryone was interesting, doing cool stuff. They were helpful, polite, and kind鈥攁ll lifelong learners.鈥�
Now back to teaching, Mr. Jarrett regularly volunteers to help newbies get started in Second Life at an education-oriented space, or 鈥渋sland,鈥� run by the International Society for Technology in Education. He also blogs at .
He and other veteran educators can reel off things educators are doing in Second Life, from talking with peers from other countries, to attending concerts, to building a working volcano, to designing science-lab experiments.
Second Life鈥檚 main section, or grid, is only for adults; some parts have X-rated content; other areas are rated PG, as in the territories run by educational institutions.
Another, separate grid is reserved for teenagers; no adults are allowed without special dispensation and a background check.
Individual members, upon joining, create an avatar and can then record personal profiles, search for activities and events, and make electronic links to friends they meet there, among other activities.
Individuals or groups can purchase virtual land that can be used for marketing, training, and selling鈥攗sing 鈥淟inden Dollars,鈥� which are convertible into real currency.
Education-oriented organizations sometimes use their space for conferences about how to use Second Life. At a one-day 鈥淪tepping Into History鈥� session last week, sponsored by the Alliance Library System, a library-support organization based in East Peoria, Ill., and LearningTimes, a New York City-based company that produces online conferences, about 60 educators and museum professionals took tours of four historical simulations that will be used with students beginning next fall.
The virtual spaces re-created aspects of ancient Babylon; New York鈥檚 Harlem in the 1920s; Springfield, Ill., and the White House at the time of Abraham Lincoln; and England at the time of Henry VIII.
ISTE Island
The International Society for Technology in Education, or ISTE, has been in Second Life for a little over a year, using it primarily as a membership-recruiting and communication tool, said the society鈥檚 chief executive officer, Don Knezek. The Washington-based group has invested in its own 鈥渋sland,鈥� where it hosts meetings, activities, and events, notably a weekly speaker series and educator coffeehouse.
The group鈥檚 massive annual National Educational Computing Conference, which this year will be held June 29-July 2 in San Antonio, will feature numerous sessions in Second Life.
ISTE has three staff members working in Second Life as part of their jobs, said Mr. Knezek, who said the group got involved as 鈥渁 scouting operation.鈥�
鈥淏asically, what we were after is figuring out how to reach more of our members and engage them with the organization in a more meaningful way,鈥� he said.
Since January 2007, the number of ISTE members, who total about 85,000 worldwide, that also have Second Life memberships has grown from none to about 2,500.
ISTE also rents out some of its 鈥渓and鈥� to 17 other education organizations.
Classroom Potential
Some educators are interested in Second Life鈥檚 potential as an education tool with youngsters鈥攕omething that currently is permitted only under tightly controlled conditions.
Some other virtual worlds are intended for children. Not Second Life, except for its 鈥淭een Grid,鈥� or on safely walled-in private 鈥渆states,鈥� which some schools have established.
Ms. Sheehy, a middle school teacher in the 4,800-student Ramapo school district, in Hillburn, N.Y., said the the Teen Grid has 22 educational establishments. She oversees Ramapo Island, a private area there used exclusively by the district鈥檚 teachers and students.
Ms. Sheehy has trained 40 Ramapo teachers on how to hold learning activities, which she said 鈥済ets students invested and engaged.鈥�
In a science class, for example, a group of 8th graders built an avalanche. Math classes have used shopping to teach 鈥渕arket math.鈥�
鈥淚t鈥檚 not about the technology; it鈥檚 about the learning,鈥� Ms. Sheehy said. 鈥淚鈥檓 supporting a standards-based curriculum that is authentically translated in the virtual environment.鈥�
Check out the new issue of for additional articles on education and technology.
For more stories on this topic see Technology.
Another major provider on the Teen Grid is Global Kids Inc., a nonprofit group based in New York City that runs after-school programs and hosts activities on Teen Second Life for teenagers at the city鈥檚 schools as well as other places.
Activities include service projects, such as raising money for humanitarian aid to the Darfur region of Sudan, and making short movies, called 鈥渕achinima,鈥� that are filmed on locations and movie sets on the Teen Grid.
But Second Life also offers challenges to educators, experts say. One is that the virtual environment is often affected by service slowdowns, which can wreak havoc on classes being conducted there.
Mr. Walsh predicted that school districts will use virtual worlds widely for classes only when they can host them on their own computer servers, for reasons both of performance and student safety and privacy.
Mr. Dede of Harvard contends that the high-fidelity imagery used by Second Life may appeal to adults, but that it is not needed for youngsters to enjoy using it, and yet it unnecessarily increases the technical demands on users鈥� computers and networks.
Another problem is the expense. 鈥淚t costs a considerable amount of money to use Second Life, compared to using other [virtual world] shells that are not as well publicized,鈥� Mr. Dede said.
A more fundamental problem, according to Mr. Dede, is the 鈥渂asic belief of almost everyone working in Second Life, that, like Coca-Cola, everything goes better with it.鈥� He said many features can be added to make Second Life and other virtual worlds more suitable for education: 鈥淚 am convinced the potential is there, in terms of virtual worlds and game engines.鈥�
For now, educators should proceed thoughtfully. 鈥淚f you鈥檙e doing a lecture, there鈥檚 no reason to believe that listening to the lecture as an avatar in Second Life is any better than in the real world,鈥� he said.
