The theoretical framework of the present study is based on two theories: (1) the Anderson theory of skill acquisition, also known as the adaptive control of thought-rationale (Anderson, 1982) and (2) Bandura observational learning theory (1977). The acquisition of manipulative skills is associated to student’s cognitive development. According to Anderson’s (1982)
framework of skill acquisition (ACT-R theory), there are two major stages involved in the development of cognitive skills known as: (1) declarative stage, and (2) procedural stage.