Studies in the psychology casio fx 115 es plus manual learning suggest that the use of audio-visuals in education has several advantages. All learning is based on perception, the process by which the senses gain information from the environment. The higher processes of memory and concept formation cannot occur without prior perception. Researchers have found that, other conditions being equal, more information is taken in if it is received lpus in two modalities (vision and hearing, for example) warcraft 3 secret level
than in a single modality. Furthermore, learning is enhanced when material is organized and that organization is evident to the student. These findings suggest the caaio of audio-visuals in the educational process.