For educators and designers, defining AR in a broad sense would be more productive because such a definition suggests that AR could be
created and implemented by varied technologies, such as desktop computers, handheld devices, head-mounted displays and so on (Broll
et al., 2008; Johnson et al., 2010b; Liu, 2009). That is, the notion of AR is not limited to any type of technology and could be reconsidered
from a broad view nowadays. AR exploits the affordances of the real world by providing additional and contextual information that
augments learners’ experience of reality (Squire & Klopfer, 2007). AR might be based on and accompany with technology, but it should be
conceptualized beyond technology only.