Virtual reality is an exciting technology and has many applications in various fields of activity. In particular, many VR supporters believe that this technology can revolutionize education and training. But is it really true? A group of researchers at Cornell University wanted to check how effective virtual reality learning is.
A Well Balanced Experiment Using Virtual Reality and Traditional Learning Tools
The researchers selected astronomy as the topic for the experiment. Titled “Learning Moon Phases in Virtual Reality”, it involved three equal groups of students. One group received hands-on training. The second group had to use a desktop to learn about the topic. The third group received virtual reality helmets and entered into a realistic representation of the solar system.
Senior author Natasha Holmes, who holds the position of Ann S. Bowers Assistant Professor in the College of Arts and Sciences in physics at Cornell University, described the purpose of the experiment.
“We’ve seen a lot of technology fads in education. And while technology can be very powerful in the classroom, as a discipline-based education researcher, it’s my job to do the controlled studies with real students to understand how, when and why these tools impact students.”
How the Experiment Unfolded
The hands-on learning group received a source of light representing the sun as well as a short stick with a ball at one end, representing the moon. The students themselves were representing the Earth. Keeping the stick at arm’s length, the students had to spin the ball in cycles to simulate the moon phases.
The desktop learning method involved a representation of the celestial bodies in our solar system. The students could change their viewpoint, switch between planar perspectives, as well as change the progression of time in order to observe the various phases of the moon.
The virtual reality learning group was immersed into an interactive representation of the solar system. In this environment, they could – same as the other group – change their viewpoint, but also move forward and backward in time, and change the orbit of the moon.
To make the experiment as relevant as possible, at the end of the learning session, the students received a test. Its questions were structured in a way that allowed researchers to test different kinds of learning, such as memorizing, building mental models and making predictions.
The Outcome of the Experiment
The researchers compared the students’ test results and found no significant variations between the learning methods. All the students had similar performances in answering the questions.
Lead author Jack Madden, doctoral candidate in astronomy, explained these results:
“The similarity in learning outcome is particularly interesting, given that the VR participants had to learn how to use new technology at the same time they were learning the moon phases.” So, an interesting question, one that Madden also poses, is “What would the outcome have been if they’d already been familiar with using VR to learn?”
At the end of the experiment, all the students had the chance to experiment the other two learning methods. And that’s when the experiment findings get interesting. What researchers noted is a significant preference for virtual reality learning. More precisely, 78% of the students preferred this method. In fact, one participant described it as “the coolest thing I’ve ever seen”.
The students who did not prefer this learning method stated that they felt “uncomfortable with the overwhelming sensory input”. Others said that the the feeling like they were in the space was so exciting, that it distracted them from learning.
The fact that learning outcomes, for all three groups, were similar, should not be a discouragement. What’s important for the future of VR in education is the fact that VR is the preferred method, which means that students find it interesting, and therefore would probably find learning itself more interesting. As Madden noted, it would be exciting to see the learning outcome in situations when students are already familiar with using VR.
Planning A New Virtual Reality Experiment
The researchers presented the experiment at the 2018 Physics Education Research Conference. The paper is available for free at the peer reviewed Physics Education Research Conference Proceedings.
In addition, the authors announced their intention to conduct another experiment. This time, the virtual reality learning group will have an avatar that will interact with the holographic universe. In the completed experiment, they noted that the lack of a holographic body was confusing to many VR learning students.
Graduate student Swati Pandita, who contributed to the experiment, said:
“Several participants mentioned feeling nervous because they didn’t have a body and remarked, ‘There’s no space suit so how can I breathe?’ The lack of a virtual body may have affected their willingness to explore the environment freely. We want to see if people will feel more encouraged to move around and engage more with the environment if they have an avatar.”
The virtual learning experiment benefited from the expertise of the Virtual Embodiment Lab, a technology focused department of Cornell University. The experiment itself took place in the Mann Library of the lab. Other key supporters for the VR learning experiment were the Department of Physics at Cornell University and Oculus Education.