Further, the multimedia learning layer of the model has to be revisited and extended. In fact, the focus of the future research will be on studying the usefulness of haptic technology in multimedia learning environments. The use of haptic technology can simulate cutaneous and kinesthetic sensations so that learning materials not only look but also feel (McGee, 2002) and may provide a means to reduce external cognitive load in visually and auditorily demanding learning materials (M�nch & Dillmann, 1997). Thus, I want to propose that in the future we should consider supplementing the multimedia learning layer with the haptic channel in order to be able to design more effective, engaging, and realistic learning materials
Jody Ranous on 05 Jun 12PhET Interactive Simulations (http://phet.colorado.edu/) allow students to see and practice complex science concepts that they are working on in class and see them actually performed. These simulations offer students the opportunity to try things out in a simulation before constructing their own machines. It allows teachers to show students advanced concepts and principles that they may not have the lab equipment to do in class. Students are able to manipulate the variables to see what happens so that physics is more than a series of equations. Mayer (2009) would see this as a knowledge construction becuase students are able to go in and manipulate the variables in their own way so that they given any circumstances they can see what happens. They are able to construct their own knowledge based on the parameters they put into the simulations so they can see what would happen when they apply more force or increase the mass of an object, they can then use that information to help them determine if their calculations make sense.
