School & District Management

Benefits Seen for Students Teaching Virtual Pupils

Scientists Say Their ‘Teachable Agents’ Seem to Spur Effort, Motivation
By Sarah D. Sparks — October 28, 2010 | Corrected: February 21, 2019 4 min read
The Betty’s Brain program, developed by researchers at Stanford and Vanderbilt universities, allows students to customize and teach a virtual character by relating concepts in a graphic map of Betty’s thoughts.
  • Save to favorites
  • Print

Corrected: An earlier version of this story incorrectly identified the director of Stanford University’s AAA Lab in Palo Alto, Calif. His name is Daniel Schwartz.

Educators have long held that peer tutoring can help students learn, and emerging research on students working with computer characters points to one possible reason why: Teaching begets learning for the teachers.

Researchers at Stanford University’s AAA Lab and Vanderbilt University’s Teachable Agents Group call it the “protégé effect,” which posits that students will work harder, reason better, and ultimately understand more by learning to teach someone else—even a virtual “teachable agent”—than they will when learning for themselves.

Being social is a frame of mind, said Daniel Schwartz, the director of the Palo Alto, Calif.-based AAA Lab, a social and cognitive learning research center. “These kids know these characters aren’t alive, but they get engaged with the narrative and play pretend, and it brings out a lot of good behaviors,” he said.

Most studies of peer-mediated learning and reciprocal teaching focus on improvements for the students being taught, rather than the advantages for the student-teacher. Teachable Agents researchers instead study how the act of teaching, both in students’ effort and reflection on thinking, improves their learning.

The research teams started talking about teachable agents nearly a decade ago, in response to too much student dependency on answer feedback in virtual tutoring programs. Rather than understanding a concept, a student tended to try answers randomly until one worked. “We wanted to build systems that could help students learn with understanding,” said Gautam Biswas, a computer science professor and head of the Vanderbilt Teaching Agents Project.

Building Virtual Betty

The teams since have developed a half dozen different computer programs in which students customize a virtual agent and teach it mathematics or science concepts. The agent questions, misunderstands, and otherwise learns realistically. For example, in the Betty’s Brain program, a concept map represents the character’s thought process, and students teach her by making logic chains. Showing how garbage contributes to global warming, for example, requires connecting eight separate causal inferences. The student can test his or her agent’s knowledge, ask it to explain its answers, and correct misunderstandings by adding new information to the map.

So far, all of the experiments have been relatively small-scale—a few schools or grades at a time—but they have explored dozens of permutations of how students from kindergarten through college interact with computer agents.

In a series on 5th, 6th, and 8th graders, researchers used the same software, curriculum kit, and science teachers, but told one group of students that they would be teaching the characters and the other group of students that their characters were avatars, representing the students. The student-teachers spent nearly twice as long reading the study materials, and more time checking and re-editing the concept maps, while the students learning for themselves spent more time in an online chat with other students and playing the quiz game. Moreover, experiments showed that the student-teachers were more likely than the learners to voice concern and responsibility when the characters answered quiz questions incorrectly, and also were more likely to study and do other work after the first quiz to improve for the next one. In the end, the student-teachers performed better than learners on both the informal quiz shows and a separate post-test.

“When you are looking at something yourself, you can fool yourself into thinking you know everything, but when you have to communicate it to someone else, you realize that you’re really not being precise enough,” Mr. Schwartz said.

Unlike real students, the agent always explains how it came to an answer, and in separate studies the researchers have found student-teachers adopt their agent’s thought process. Over three science units, student-teachers became better than contol-group learners at making short, medium, and long lines of reasoning.

More recently, Mr. Biswas added a mentor agent, “Mr. Davis,” to help student-teachers learn new reasoning strategies to teach their characters. The classroom teachers also receive feedback on students’ common mistakes, so that they can discuss problem areas outside the virtual environment.

“Teaching seems to have a positive effect on learning and on top of that, giving meta-cognitive feedback also improves learning,” Mr. Biswas said.

Both labs are moving to bring the lessons from virtual teaching to flesh-and-blood classrooms. This year, the Vanderbilt lab is exploring ways to help students transfer reasoning strategies to other subjects through schoolwide projects, while the AAA Lab has started to compare the protégé effect for students teaching both real and virtual students; studies from both labs are due in coming months.

Douglas H. Fuchs, a special education professor at Vanderbilt and developer of Peer-Assisted Learning Strategies, a popular reciprocal-learning program, said he has seen similar benefits in his own studies of real-life students involved in peer tutoring in math. In those studies, high-achieving students, as well as tutees, benefited, which Mr. Fuchs said could mean “there really is something important for the ‘teacher’ if the context is smartly set up and children are provided with appropriate training, guidance [and] direction.”

A version of this article appeared in the November 03, 2010 edition of Education Week as Researchers Find That Students Learn by Tutoring Virtual Peers

Events

This content is provided by our sponsor. It is not written by and does not necessarily reflect the views of Education Week's editorial staff.
Sponsor
School & District Management Webinar
Leadership in Education: Building Collaborative Teams and Driving Innovation
Learn strategies to build strong teams, foster innovation, & drive student success.
Content provided by Follett Learning
School & District Management K-12 Essentials Forum Principals, Lead Stronger in the New School Year
Join this free virtual event for a deep dive on the skills and motivation you need to put your best foot forward in the new year.
This content is provided by our sponsor. It is not written by and does not necessarily reflect the views of Education Week's editorial staff.
Sponsor
Privacy & Security Webinar
Navigating Modern Data Protection & Privacy in Education
Explore the modern landscape of data loss prevention in education and learn actionable strategies to protect sensitive data.
Content provided by  Symantec & Carahsoft

EdWeek Top School Jobs

Teacher Jobs
Search over ten thousand teaching jobs nationwide — elementary, middle, high school and more.
View Jobs
Principal Jobs
Find hundreds of jobs for principals, assistant principals, and other school leadership roles.
View Jobs
Administrator Jobs
Over a thousand district-level jobs: superintendents, directors, more.
View Jobs
Support Staff Jobs
Search thousands of jobs, from paraprofessionals to counselors and more.
View Jobs

Read Next

School & District Management Principals' Unions Are on the Rise. What Are Their Demands?
Across the country, principals are organizing for better working conditions.
8 min read
Illustration of hands shaking with smaller professional people standing on top, with hands in the air, celebrating.
iStock/Getty
School & District Management How Principals Are Outsourcing Their Busywork to AI
Principals are chipping away at their administrative to-do lists with a little help from AI.
6 min read
Education technology and AI Artificial Intelligence concept, Women use laptops, Learn lessons and online webinars successfully in modern digital learning,  Courses to develop new skills
iStock/Getty
School & District Management Opinion How to Let Your Values Guide You as a School Leader
Has your “why” become fuzzy? Here are four steps to keep principals motivated and moving forward.
Damia C. Thomas
4 min read
Silhouette of a figure inside of which is reflected public school life, Self-reflection of career in education
Vanessa Solis/Education Week via Canva
School & District Management ‘Be Vocal Without Being Vicious’: Superintendents on Fighting for More Funding
Two superintendents talk about stepping into the political realm to call for more public school funding.
5 min read
Photo of dollar bills frozen in ice.
iStock / Getty Images Plus