Fig. 3 demos the tutor in the AR classroom. When students
start this class by launching the mobile app, the 3-D avatar
tutor will show up above the tutor AR marker and start the
introduction. Since the demo learning lesson is related to
military, the tutor appears in the character of soldier to create
the immersive environment. After the tutor finishes the
introduction, the tutor will guide students to the next area or
switch between different scenes. The tutor in this class will
guide students to the theme area and use 3D object to
elaborate the class. The designed curriculum leads students
focusing on the given target and concentrating on the task to
create flow experience.