Table 1.

Summary of comparison of two interfaces for vocabulary learning

	AR application	Non-AR application
Interaction	Users find an object with a marker. They then point the tablet PC to the marker to reveal the content.	Users press “next” or “previous” to switch between contents.
Inherent feature	Users can see the markers in their environment even when they are not studying.	Users can quickly go through all the material because they are arranged in a series.
Visual display	Texts, images, sounds, and animations are displayed in the real environment.	Illustrations are shown on a white background.
Place and time	Users can only use it inside their laboratory at any given time.	Users can only use it inside their laboratory at any given time.