Stationed around the class, each robot has a mounted video screen controlled by the remote user that lets the student pan around the room to see and talk with the instructor and fellow students participating in-person.
The study, published in Online Learning, found that robot learning generally benefits remote students more than traditional videoconferencing, in which multiple students are displayed on a single screen.
Instead of looking at a screen full of faces as she does with traditional videoconferencing, she can look a robot- learner in the eye - at least digitally, said Christine Greenhow, associate professor at Michigan State University (MSU) in the US.
The technology also has implications for telecommuters working remotely and students with disabilities or who are ill, she said.
More From This Section
MSU's College of Education started using robot learning in 2015. Researchers studied an educational technology doctoral course in which students participated in one of three ways - in-person, by robot and by traditional videoconferencing.
Courses that combine face-to-face and online learning, called hybrid or blended learning, are widely considered the most promising approach for increasing access to higher education and students' learning outcomes.
With traditional videoconferencing, remote students generally can not tell the instructor is looking at them and can get turned off from joining the discussion.
"These students often feel like they're interrupting, like they're not fully participating in the class," Greenhow said.
"The main takeaway here is that students participating with the robots felt much more engaged and interactive with the instructor and their classmates who were on campus," she said.
To engage the robot from home, students just need to download free software onto their computer.