"Virtual reality has been the driving force behind Google’s Expeditions app since it launched three years ago. And recently it’s added another layer of “reality” to the virtual field trip tool—AR, or augmented reality to be precise, which take the form of features such as narration, annotations, and a new “solo mode,” going on virtual trips without a guide.
This past school year Google says over one million students have used the AR tools as part of the company’s Expeditions Pioneer Program. In New York City, 99 different schools experimented with the program for the first time, giving students an up-close look at everything from famous world landmarks to the human body."