“…A number of studies investigated the effects of multimedia elements, simulations and manipulatives within online environments (McKethan et al, 2003;Schmeeckle, 2003;Maag, 2004;Schroeder, 2006;Zhang et al, 2006;Schnitman, 2007;Schutt, 2007;Tantrarungroj, 2008). These studies discovered two important aspects regarding multi-media components within an OLE: (1) Incorporating media components alone is not sufficient by itself to enhance instruction and positively influence learning while they contribute to knowledge retention and (2) how these media components are integrated does play a key role in student learning, e.g.…”